Formatted numeric output: Difference between revisions
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{{task|Basic language learning}}
[[Category:Text processing]]
[[Category:Simple]]
;Task:
Express a number in decimal as a fixed-length string with leading zeros.
For example, the number '''7.125''' could be expressed as '''00007.125'''.
<br><br>
=={{header|11l}}==
<syntaxhighlight lang="11l">print(‘#05.3’.format(7.125))</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|8086 Assembly}}==
The <code>PrintString</code> and <code>PrintChar</code> routines was omitted to keep this short. They handle the printing of null-terminated strings.
As an added bonus, this program supports trailing zeroes, but since the example didn't have any it won't get run.
<syntaxhighlight lang="asm"> .model small
.stack 1024
.data
;data segment is unused in this program
.code
start:
mov ax,@code
mov ds,ax
mov es,ax
cld ;make lodsb, etc. auto-increment
mov al, byte ptr [ds:LeadingZeroes]
mov cl,al
mov ch,0
mov al,'0' ;30h
jcxz DonePrintingLeadingZeroes ;there are leading zeroes so we won't skip that section. This branch is not taken.
printLeadingZeroes:
call PrintChar ;print ascii 0 to the terminal 4 times
loop printLeadingZeroes
DonePrintingLeadingZeroes:
mov si, offset TestString
call PrintString
mov al, byte ptr [ds:TrailingZeroes]
mov cl,al
mov ch,0
mov al,'0' ;30h
jcxz DonePrintingTrailingZeroes ;there are none in this example so this branch is always taken
printTrailingZeroes:
call PrintChar
loop printTrailingZeroes
DonePrintingTrailingZeroes:
mov ax,4C00h
int 21h ;exit to DOS
TestString byte "7.125",0
LeadingZeroes byte 4 ;number of leading zeroes to print
TrailingZeroes byte 0 ;number of trailing zeroes to print</syntaxhighlight>
{{out}}
<pre>
C:\>prog.exe
00007.125
C:\>_
</pre>
=={{header|8th}}==
<
7.125 "%09.3f" s:strfmt
. cr
</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|AArch64 Assembly}}==
{{works with|as|Raspberry Pi 3B version Buster 64 bits}}
<syntaxhighlight lang="aarch64 assembly">
/* ARM assembly AARCH64 Raspberry PI 3B */
/* program formatNum64.s */
/* use C library printf ha, ha, ha !!! */
/*******************************************/
/* Constantes file */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
/*******************************************/
/* Initialized data */
/*******************************************/
.data
szFormat1: .asciz " %09.3f\n"
.align 4
sfNumber: .double 0f-7125E-3
sfNumber1: .double 0f7125E-3
/*******************************************/
/* UnInitialized data */
/*******************************************/
.bss
.align 4
/*******************************************/
/* code section */
/*******************************************/
.text
.global main
main: // entry of program
ldr x0,qAdrszFormat1 // format
ldr x1,qAdrsfNumber // float number address
ldr d0,[x1] // load float number in d0
bl printf // call C function !!!
ldr x0,qAdrszFormat1
ldr x1,qAdrsfNumber1
ldr d0,[x1]
bl printf
100: // standard end of the program
mov x0,0 // return code
mov x8,EXIT // request to exit program
svc 0 // perform the system call
qAdrszFormat1: .quad szFormat1
qAdrsfNumber: .quad sfNumber
qAdrsfNumber1: .quad sfNumber1
</syntaxhighlight>
{{Output}}
<pre>
-0007.125
00007.125
</pre>
=={{header|Ada}}==
<
with Ada.Text_Io; use Ada.Text_Io;
Line 27 ⟶ 158:
begin
Put(Item => Value, Pic => Pic);
end Zero_Fill;</
{{out}}
<pre>
000037.25
</pre>
=={{header|Aime}}==
<syntaxhighlight lang="aime">o_form("/w9s0/\n", 7.125);
o_form("/w12d6p6/\n", -12.0625);
o_form("/w12d6p6/\n", 7.125);</syntaxhighlight>
{{out}}
<pre>00007.125
-12.0625
7.125 </pre>
=={{header|ALGOL 68}}==
Line 40 ⟶ 180:
{{works with|ALGOL 68G|Any - tested with release [http://sourceforge.net/projects/algol68/files/algol68g/algol68g-1.18.0/algol68g-1.18.0-9h.tiny.el5.centos.fc11.i386.rpm/download 1.18.0-9h.tiny]}}
{{wont work with|ELLA ALGOL 68|Any (with appropriate job cards) - tested with release [http://sourceforge.net/projects/algol68/files/algol68toc/algol68toc-1.8.8d/algol68toc-1.8-8d.fc9.i386.rpm/download 1.8-8d] - due to extensive use of FORMATted transput}}
<
REAL r=exp(pi)-pi;
print((r,newline));
Line 56 ⟶ 196:
printf(($zzzz-d.ddddeddl$,r));
printf(($4z-d.4de4dl$,r))
)</
{{out}}
<pre>
Line 73 ⟶ 213:
1.9999e01
1.9999e0001
</pre>
=={{header|Amazing Hopper}}==
<syntaxhighlight lang="c">
#include <basico.h>
#proto padzeros(_X_,_S_,_D_)
#proto padmoney(_N_,_D_,_F_,_S_,_P_)
algoritmo
n={}, '125, 12.39802, 0.0003221, -0.0045, 457897.789' enlistar en 'n'
fijar separador 'NL'
imprimir( "Express a number in decimal as a fixed-length string with leading zeros:\n\n",\
#(pad zeros(n,19,5)), "\n\n",\
#(pad zeros(n,19,0)), "\n\n",\
#(pad zeros( (-9873000155.584),19,1)), "\n\n",\
"Bonus track:\n\n",\
#(lpad( " ",20,string(n))), "\n\n",\
#(lpad( " ",20,notation(n))),"\n\n",\
#(pad money(n,1,".",19,"$")),"\n\n",\
#(pad money(1980.67,1,"_",16,"USD$"),NL))
terminar
subrutinas
pad zeros(n, l, d)
decimales 'd'
s=0, sgn=0
#( s = string( n * sgn:=(sign(n)) ) )
#( sgn = string(sgn) )
si ( s, es matriz? )
mapear( #(sgn=="-1"), "-", sgn )
mapear( #(sgn=="1"), " ", sgn )
sino
#(sgn=="-1"), entonces{ "-",mover a 'sgn' }
#(sgn=="1"), entonces{ " ",mover a 'sgn' }
fin si
#(cat( sgn, lpad( "0",l,s)))
decimales normales
retornar
pad money(num, dec, fill, size, prefix)
#(cat(prefix,lpad(fill,size,money(dec,num))))
retornar
</syntaxhighlight>
{{out}}
<pre>
Express a number in decimal as a fixed-length string with leading zeros:
0000000000125.00000
0000000000012.39802
0000000000000.00032
-0000000000000.00450
0000000457897.78900
0000000000000000125
0000000000000000012
0000000000000000000
-0000000000000000000
0000000000000457898
-00000009873000155.6
Bonus track:
125
12.398020
0.000322
-0.004500
457897.789000
1.250000e+02
1.239802e+01
3.221000e-04
-4.500000e-03
4.578978e+05
$..............125.0
$...............12.4
$................0.0
$...............-0.0
$..........457,897.8
USD$_________1,980.7
</pre>
Line 79 ⟶ 307:
But to fit the string into a greater container prepending 0 we must write our own function.
(The one here proposed has no a flag for the alignment of the result inside the containing string)
<
DEF s, t, i
IF (len = 0) OR (len < (digit+3))
Line 97 ⟶ 325:
DEF s[100] : STRING
WriteF('\s\n', newRealF(s, 7.125, 3,9))
ENDPROC</
==
<
00007.125000000</
APL's <tt>⎕FMT</tt> is similar to C's <tt>printf</tt> (only it operates on arrays).
=={{header|ARM Assembly}}==
{{works with|as|Raspberry Pi}}
<syntaxhighlight lang="arm assembly">
/* ARM assembly Raspberry PI */
/* program formatNum.s */
/* use C library printf ha, ha, ha !!! */
/* Constantes */
.equ EXIT, 1 @ Linux syscall
/* Initialized data */
.data
szFormat1: .asciz " %09.3f\n"
.align 4
sfNumber: .double 0f-7125E-3
sfNumber1: .double 0f7125E-3
/* UnInitialized data */
.bss
.align 4
/* code section */
.text
.global main
main: @ entry of program
push {fp,lr} @ saves registers
ldr r0,iAdrszFormat1 @ format
ldr r1,iAdrsfNumber @ number address
ldr r2,[r1] @ load first 4 bytes
ldr r3,[r1,#4] @ load last 4 bytes
bl printf @ call C function !!!
ldr r0,iAdrszFormat1
ldr r1,iAdrsfNumber1
ldr r2,[r1]
ldr r3,[r1,#4]
bl printf
100: @ standard end of the program
mov r0, #0 @ return code
pop {fp,lr} @restaur registers
mov r7, #EXIT @ request to exit program
swi 0 @ perform the system call
iAdrszFormat1: .int szFormat1
iAdrsfNumber: .int sfNumber
iAdrsfNumber1: .int sfNumber1
</syntaxhighlight>
=={{header|Arturo}}==
<syntaxhighlight lang="rebol">r: 7.125
print r
print to :string .format: "09.3f" r</syntaxhighlight>
{{out}}
<pre>7.125
00007.125</pre>
=={{header|AutoHotkey}}==
contributed by Laszlo on the ahk [http://www.autohotkey.com/forum/post-276467.html#276467 forum]
<syntaxhighlight lang="autohotkey">MsgBox % pad(7.25,7) ; 0007.25
MsgBox % pad(-7.25,7) ; -007.25
pad(x,len) { ; pad with 0's from left to len chars
IfLess x,0, Return "-" pad(SubStr(x,2),len-1)
VarSetCapacity(p,len,Asc("0"))
Return SubStr(p x,1-len)
}</syntaxhighlight>
=={{header|AWK}}==
<
r=7.125
printf " %9.3f\n",-r
Line 115 ⟶ 417:
printf " %09.3f\n",r
printf " %-09.3f\n",r
}</
Same output as the C code.
=={{header|
==={{header|ANSI BASIC}}===
{{works with|Decimal BASIC}}
<syntaxhighlight lang="basic">
100 REM Formatted numeric output
110 LET N = 7.125
120 PRINT USING ("%%%%.###"): N
130 PRINT USING ("****.###"): N
140 PRINT USING ("####.###"): N
150 PRINT USING ("+%%%.###"): N
160 PRINT USING ("+%%%.###"): -N
170 PRINT USING (".###^^^^^"): N
180 PRINT USING ("#.###^^^^^"): N
190 PRINT USING ("##.###^^^^^"): N
200 PRINT USING ("+.###^^^^^"): -N
210 END
</syntaxhighlight>
{{out}}
<pre>
0007.125
***7.125
7.125
+007.125
-007.125
.713E+001
7.125E+000
71.250E-001
-.713E+001
</pre>
==={{header|BaCon}}===
BaCon can use C style <tt>printf</tt> format specifiers.
<syntaxhighlight lang="freebasic">' Formatted numeric output
n = 7.125
PRINT n FORMAT "%09.3f\n"</syntaxhighlight>
{{out}}
<pre>prompt$ ./formatted
00007.125</pre>
==={{header|BBC BASIC}}===
<syntaxhighlight lang="bbcbasic"> PRINT FNformat(PI, 9, 3)
PRINT FNformat(-PI, 9, 3)
END
Line 140 ⟶ 473:
= RIGHT$(STRING$(sl%,"0") + STR$(n), sl%)
ENDIF
= "-" + RIGHT$(STRING$(sl%,"0") + STR$(-n), sl%-1)</
{{out}}
<pre>
Line 146 ⟶ 479:
-0003.142
</pre>
==={{header|BASIC256}}===
<syntaxhighlight lang="basic">n = 7.125
print rjust(string(n), 8, "0") # => 00007.125
print zfill(string(n), 8) # => 00007.125</syntaxhighlight>
==={{header|Chipmunk Basic}}===
{{improve|Chipmunk Basic|It does not express numbers with unknown length as a fixed-length string (e.g. 777.125 or 77.125 result in too long string).}}
<syntaxhighlight lang="basic">
10 print using "0000#.###";7.125
</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
==={{header|FreeBASIC}}===
<syntaxhighlight lang="freebasic">' FB 1.05.0 Win64
#Include "vbcompat.bi"
Dim s As String = Format(7.125, "00000.0##")
Print s
Sleep</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
==={{header|FutureBasic}}===
<syntaxhighlight lang="futurebasic">window 1, @"Formatted Numeric Output", (0,0,480,270)
print using "0000#.###";7.125
HandleEvents</syntaxhighlight>
Output:
<pre>00007.125</pre>
==={{header|IS-BASIC}}===
<syntaxhighlight lang="is-basic">100 LET F=7.125
110 PRINT USING "-%%%%%.###":F</syntaxhighlight>
==={{header|Liberty BASIC}}===
Custom function builds on the supplied 'print using( "###.###", n)'.<br>
NB no check that this does not truncate high-order digits...
and remember LB calculates with more figures than its normal 'print' displays.
<syntaxhighlight lang="lb">
for i = 1 to 10
n = rnd(1) * 10 ^ (int(10 * rnd(1)) - 2)
print "Raw number = "; n, "Using custom function = "; FormattedPrint$(n, 16, 5)
next i
end
function FormattedPrint$(n, length, decPlaces)
format$ = "#."
for i = 1 to decPlaces
format$ = format$ + "#"
next i
n$ = using(format$, n) ' remove leading spaces if less than 3 figs left of decimal
' add leading zeros
for i = 1 to len(n$)
c$ = mid$(n$, i, 1)
if c$ = " " or c$ = "%" then nn$ = nn$ + "0" else nn$ = nn$ + c$
next i
FormattedPrint$ = right$( "000000000000" +nn$, length) ' chop to required length
end function
</syntaxhighlight>
{{out}}
<pre>
Raw number = 0.92349667e-2 Using custom function = 0000000000.00923
Raw number = 0.45244905 Using custom function = 0000000000.45245
Raw number = 3084321.68 Using custom function = 0003084321.68220
Raw number = 545.557351 Using custom function = 0000000545.55735
Raw number = 765.455263 Using custom function = 0000000765.45526
Raw number = 650413.092 Using custom function = 0000650413.09248
Raw number = 0.85554345 Using custom function = 0000000000.85554
Raw number = 296.155771 Using custom function = 0000000296.15577
Raw number = 8.3816344 Using custom function = 0000000008.38163
Raw number = 0.1007265e-2 Using custom function = 0000000000.00101
</pre>
==={{header|Nascom BASIC}}===
{{trans|ZX Spectrum Basic}}
{{works with|Nascom ROM BASIC|4.7}}
<syntaxhighlight lang="basic">
10 REM Formatted numeric output
20 CLS
30 LET N=7.125
40 LET W=9
50 GOSUB 1000
60 SCREEN 10,9:PRINT N$
70 END
1000 REM Formatted fixed-length
1010 N$=STR$(N):N$=RIGHT$(N$,LEN(N$)-1)
1020 FOR I=1 TO W-LEN(N$)
1030 N$="0"+N$
1040 NEXT I
1050 RETURN
</syntaxhighlight>
==={{header|PureBasic}}===
Using RSet() to pad 7.125 with 3 decimals converted to a string, to 8 char length.
<syntaxhighlight lang="purebasic">RSet(StrF(7.125,3),8,"0") ; Will be 0007.125</syntaxhighlight>
==={{header|QBasic}}===
{{works with|QBasic|1.1}}
{{works with|QuickBasic|4.5}}
<syntaxhighlight lang="qbasic">n = 7.125
PRINT USING ("0000#.###"); n ' => 00007.125</syntaxhighlight>
==={{header|Run BASIC}}===
<syntaxhighlight lang="runbasic">print right$("00000";using("#####.##",7.125),8) ' => 00007.13</syntaxhighlight>
==={{header|SmallBASIC}}===
<syntaxhighlight lang="qbasic">
print format("00000.000", 7.125)
</syntaxhighlight>
==={{header|TI-89 BASIC}}===
{{improve|TI-89 BASIC|It does not handle negative numbers.}}
<syntaxhighlight lang="ti89b">right("00000" & format(7.12511, "f3"), 9)</syntaxhighlight>
==={{header|True BASIC}}===
<syntaxhighlight lang="qbasic">LET n = 7.125
PRINT USING ("0000#.###"): n ! => 0007.125
END</syntaxhighlight>
==={{header|VBA}}===
<syntaxhighlight lang="vb">Option Explicit
Sub Main()
Debug.Print fFormat(13, 2, 1230.3333)
Debug.Print fFormat(2, 13, 1230.3333)
Debug.Print fFormat(10, 5, 0.3333)
Debug.Print fFormat(13, 2, 1230)
End Sub
Private Function fFormat(NbInt As Integer, NbDec As Integer, Nb As Double) As String
'NbInt : Lenght of integral part
'NbDec : Lenght of decimal part
'Nb : decimal on integer number
Dim u As String, v As String, i As Integer
u = CStr(Nb)
i = InStr(u, Application.DecimalSeparator)
If i > 0 Then
v = Mid(u, i + 1)
u = Left(u, i - 1)
fFormat = Right(String(NbInt, "0") & u, NbInt) & Application.DecimalSeparator & Left(v & String(NbDec, "0"), NbDec)
Else
fFormat = Right(String(NbInt, "0") & u, NbInt) & Application.DecimalSeparator & String(NbDec, "0")
End If
End Function
</syntaxhighlight>
{{out}}
<pre>0000000001230.33
30.3333000000000
0000000000.33330
0000000001230.00</pre>
==={{header|VBScript}}===
{{works with|Windows Script Host|*}}
<syntaxhighlight lang="vbscript">
a = 1234.5678
' Round to three decimal places. Groups by default. Output = "1,234.568".
WScript.Echo FormatNumber(a, 3)
' Truncate to three decimal places. Output = "1234.567".
WScript.Echo Left(a, InStr(a, ".") + 3)
' Round to a whole number. Grouping disabled. Output = "1235".
WScript.Echo FormatNumber(a, 0, , , False)
' Use integer portion only and pad with zeroes to fill 8 chars. Output = "00001234".
WScript.Echo Right("00000000" & Int(a), 8)
</syntaxhighlight>
==={{header|Visual Basic}}===
{{works with|Visual Basic|VB6 Standard}}
<syntaxhighlight lang="vb">
Debug.Print Format$(7.125, "00000.000")
</syntaxhighlight>
Output (the decimal separator used depends on the system's language settings):
<syntaxhighlight lang="vb">
00007.125
</syntaxhighlight>
==={{header|XBasic}}===
{{works with|Windows XBasic}}
<syntaxhighlight lang="qbasic">PROGRAM "progname"
VERSION "0.0000"
DECLARE FUNCTION Entry ()
FUNCTION Entry ()
n! = 7.125
PRINT FORMAT$("0000#.###", n!)
END FUNCTION
END PROGRAM</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
==={{header|Yabasic}}===
<syntaxhighlight lang="basic">n = 7.125
print n using ("#####.###") // => 7.125
print str$(n, "%09.3f") // => 00007.125</syntaxhighlight>
==={{header|ZX Spectrum Basic}}===
<syntaxhighlight lang="zxbasic">10 LET n=7.125
20 LET width=9
30 GO SUB 1000
40 PRINT AT 10,10;n$
50 STOP
1000 REM Formatted fixed-length
1010 LET n$=STR$ n
1020 FOR i=1 TO width-LEN n$
1030 LET n$="0"+n$
1040 NEXT i
1050 RETURN </syntaxhighlight>
=={{header|bc}}==
First define a custom function for numeric output.
<
* Print number n, using at least c characters.
*
Line 226 ⟶ 778:
scale = s /* Restore original scale. */
}</
Then use this function to print 7.125 with 9 characters.
<
"Decimal: "; t = p(x, 9); "
"
Line 239 ⟶ 791:
"Binary: "; t = p(x, 1001); "
"
quit</
{{out}}
Line 245 ⟶ 797:
Hexadecimal: 0000007.2
Binary: 00111.001</pre>
=={{header|Beads}}==
<syntaxhighlight lang="beads">beads 1 program 'Formatted numeric output'
calc main_init
var num = 7.125
log to_str(num, min:9, zero_pad:Y)</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
=={{header|C}}==
<syntaxhighlight lang="c">#include <stdio.h>
main(){
float r=7.125;
printf(" %9.3f\n",-r);
printf(" %9.3f\n",r);
printf(" %-9.3f\n",r);
printf(" %09.3f\n",-r);
printf(" %09.3f\n",r);
printf(" %-09.3f\n",r);
return 0;
}</syntaxhighlight>
{{out}}
-7.125
7.125
7.125
-0007.125
00007.125
7.125
=={{header|C sharp|C#}}==
<
class Program
{
Line 268 ⟶ 847:
}
</syntaxhighlight>
=={{header|C++}}==
<syntaxhighlight lang="cpp">#include <iostream>
#include <iomanip>
Line 298 ⟶ 857:
std::cout << std::setfill('0') << std::setw(9) << std::fixed << std::setprecision(3) << 7.125 << std::endl;
return 0;
}</
C++20
<syntaxhighlight lang="cpp">#include <iostream>
#include <format>
int main()
{
std::cout << std::format("{:09.3f}\n", 7.125);
return 0;
}</syntaxhighlight>
=={{header|Clojure}}==
{{trans|Common Lisp}} Using cl format strings
<
{{trans|java}} Using java format strings
<
=={{header|COBOL}}==
This is actually the easiest kind of numeric output to achieve in COBOL, because it requires no adjustments from the way numbers are stored internally (in fixed-point decimal). Each variable declaration requires a <tt>PIC</tt> or <tt>PICTURE</tt> clause describing the kind of data that will be stored there. In this case, we have <tt>9</tt> (a decimal digit), repeated five times; then <tt>V</tt>, the decimal point (cf. French <i>virgule</i>); and then three more decimal digits. Other terms that can appear in <tt>PICTURE</tt> clauses include <tt>A</tt> (a letter of the alphabet), <tt>X</tt> (a character), and <tt>Z</tt> (a decimal digit to be printed with leading spaces instead of leading zeros).
<syntaxhighlight lang="cobol">IDENTIFICATION DIVISION.
PROGRAM-ID. NUMERIC-OUTPUT-PROGRAM.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-EXAMPLE.
05 X PIC 9(5)V9(3).
PROCEDURE DIVISION.
MOVE 7.125 TO X.
DISPLAY X UPON CONSOLE.
STOP RUN.</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
=={{header|Common Lisp}}==
<
=={{header|D}}==
<
void main() {
Line 322 ⟶ 905:
writefln(" %09.3f", r);
writefln(" %-09.3f", r);
}</
{{out}}
<pre> -7.125
Line 330 ⟶ 913:
00007.125
7.125 </pre>
=={{header|DBL}}==
<syntaxhighlight lang="dbl">D5=7125
A10=D5,'-ZZZZX.XXX' ; 7.125
A10=D5,'-ZZZZX.XXX' [LEFT] ;7.125
A10=D5,'-XXXXX.XXX' ; 00007.125
A10=-D5,'-ZZZZX.XXX' ;- 7.125
A10=-D5,'-ZZZZX.XXX' [LEFT] ;- 7.125
A10=-D5,'-XXXXX.XXX' [LEFT] ;-00007.125
A10=-D5,'XXXXX.XXX-' ;00007.125-
A10=-D5,'ZZZZX.XXX-' ; 7.125-
A10=-D5,'ZZZZX.XXX-' [LEFT] ;7.125-
A10=1500055,'ZZZ,ZZX.XX ; 15,000.55</syntaxhighlight>
=={{header|dc}}==
Line 336 ⟶ 933:
First define a custom function for numeric output.
<
* (n) (c) lpx
* Print number n, using at least c characters.
Line 447 ⟶ 1,044:
Lnsz Lcsz Ldsz Lfsz LDsz LFsz LLsz LIsz LPsz
Ls k [Restore variable s. Restore original scale.]sz
]sp</
Then use this function to print 7.125 with 9 characters:
<
[Decimal: ]P lx 9 lpx [
]P 16 i [Hexadecimal: ]P lx 9 lpx [
]P 2 i [Binary: ]P lx 9 lpx [
]P</
{{out}}
Line 464 ⟶ 1,061:
=={{header|Delphi}}==
<syntaxhighlight lang="delphi">
program FormattedNumericOutput;
Line 484 ⟶ 1,081:
Readln;
end.
</syntaxhighlight>
{{out}}
Line 499 ⟶ 1,096:
{{works with|Eiffel Studio|6.6}}
<syntaxhighlight lang="eiffel">
note
description : "{
Line 567 ⟶ 1,164:
end
</syntaxhighlight>
=={{header|Elixir}}==
<
:io.fwrite "~f~n", [n]
:io.fwrite "~.3f~n", [n]
Line 584 ⟶ 1,181:
:io.fwrite "~e~n", [n]
:io.fwrite "~12.4e~n", [n]
:io.fwrite "~12.4.0e~n", [n]</
{{out}}
Line 604 ⟶ 1,201:
=={{header|Emacs Lisp}}==
<
<code>format</code> is similar to C <code>sprintf</code>. See [http://www.gnu.org/software/emacs/manual/html_node/elisp/Formatting-Strings.html GNU Elisp manual on Formatting Strings].
Line 619 ⟶ 1,214:
=={{header|ERRE}}==
<
PROCEDURE FORMATTED_PRINT(N,LENGTH,DEC_PLACES->FP$)
Line 659 ⟶ 1,254:
END FOR
END PROGRAM</
{{out}}
<pre>
Line 675 ⟶ 1,270:
=={{header|Euphoria}}==
<
printf(1,"%9.3f\n",-r)
printf(1,"%9.3f\n",r)
Line 681 ⟶ 1,276:
printf(1,"%09.3f\n",-r)
printf(1,"%09.3f\n",r)
printf(1,"%-09.3f\n",r)</
{{out}}
Line 694 ⟶ 1,289:
=={{header|F_Sharp|F#}}==
<
=={{header|Factor}}==
<syntaxhighlight lang="factor">USE: formatting
7.125 "%09.3f\n" printf</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|Fantom}}==
<
class Main
{
Line 706 ⟶ 1,309:
}
}
</syntaxhighlight>
=={{header|Forth}}==
Line 717 ⟶ 1,320:
(The 1- is necessary because #s always generates at least one digit, even if it's zero.)
<
: #n ( d n -- d ) 0 ?do # loop ;
Line 724 ⟶ 1,327:
\ d.0 prints a signed double
: d.0 ( d n -- ) >r tuck dabs <# r> 1- #n #s rot sign #> type ;</
Usage example:
<
Result: 00000123 ok
Type: -123 s>d 8 d.0
Result: -00000123 ok</
===={{header|Detail}}====
Forth's number formatting words are different than many other languages because they are active code rather than using a pattern string. This small set of seven routines ( >DIGIT <# #> # #S HOLD SIGN ) allow arbitrary number formatting of double precision and single precision numbers. The number is created in a "hold' buffer the output is typically a Forth style stack-string consisting of an address and a length.
Typical of Forth the using the formatting routines means putting things in reverse order.
We are also free to create a mnemonic name that gives a reminder at how numbers will appear.
To replicate the example for this task we could write:
<pre>: '.' [CHAR] . HOLD ; \ HOLD inserts a character into the number string
\ right side . left side
: 0000#.### ( d -- addr len) DABS <# # # # '.' # # # # # #> ;</pre>
At the console we can input a double number, execute the format routine and type the resulting string.
<pre>7.125 0000#.### TYPE 000007.125 ok</pre>
=={{header|Fortran}}==
{{works with|Fortran|90 and later}}
Using standard data edit descriptors it is only possible to precede Integer data with leading zeros.
<
WRITE(*,"(I8.8)") number ! Prints 00007125</
===On the other hand===
One can engage in trickery via FORMAT statements, in particular the T format option. Unlike actual tab settings which on a typewriter go to a particular column following, T''n'' means go to column ''n''.
<syntaxhighlight lang="fortran">
INTEGER IV
REAL V
Line 748 ⟶ 1,364:
1 FORMAT (F9.3,T1,I5.5)
END
</syntaxhighlight>
Output is
00007.125
This would need adjustment for other sizes, but works as follows: The value part is printed (in the format system's working area) as "bbbb7.125" (b's standing for spaces), then the T1 moves the finger back to column one, and the I5.5 writes out "00007", the .5
Another approach would be to write forth a literal "0000" instead of the integer, but this is less flexible. In the absence of the .5 addendum, write the output to a character string (or equivalent), replace leading spaces by zeroes (watching out for negative numbers), and print the result.
=={{header|Free Pascal}}==
''See [[#Pascal|Pascal]]''
=={{header|Fōrmulæ}}==
{{FormulaeEntry|page=https://formulae.org/?script=examples/Formatted_numeric_output}}
=={{header|Gambas}}==
'''[https://gambas-playground.proko.eu/?gist=4f64ab96d0f97df5876b76ab0431b302 Click this link to run this code]'''
<syntaxhighlight lang="gambas">Public Sub Main()
Print Format("7.125", "00000.000")
End</syntaxhighlight>
Output:
<pre>
00007.125
</pre>
=={{header|gnuplot}}==
<
=={{header|Go}}==
<
=={{header|Groovy}}==
Solution:
<
{{out}}
Line 769 ⟶ 1,404:
=={{header|Haskell}}==
<
main =
printf "%09.3f" 7.125</
=={{header|hexiscript}}==
<syntaxhighlight lang="hexiscript">fun format n length
let n tostr n
while len n < length
let n 0 + n
endwhile
println n
endfun
format 7.125 9</syntaxhighlight>
=={{header|HicEst}}==
<
=={{header|
<syntaxhighlight lang="i">
concept FixedLengthFormat(value, length) {
string = text(abs(value))
prefix = ""
sign = ""
if value < 0
sign = "-"
end
if #string < length
prefix = "0"*(length-#sign-#string-#prefix)
end
return sign+prefix+string
}
software {
d = 7.125
print(FixedLengthFormat(d, 9))
print(FixedLengthFormat(-d, 9))
}
</syntaxhighlight>
=={{header|Icon}} and {{header|Unicon}}==
<
procedure main()
Line 793 ⟶ 1,457:
write(sprintf(p,r)," <=== sprintf ",p)
}
end</
{{out}} Abbreviated
Line 805 ⟶ 1,469:
{{libheader|Icon Programming Library}} provides [http://www.cs.arizona.edu/icon/library/src/procs/printf.icn printf]
=={{header|IDL}}==
[[Category:IDL]]
<syntaxhighlight lang="idl">n = 7.125
print, n, format='(f08.3)'
;==> 0007.125</syntaxhighlight>
=={{header|J}}==
<
00007.125</
[http://www.jsoftware.com/help/dictionary/dx008.htm Documentation on 8!:]
Line 815 ⟶ 1,486:
{{works with|Java|1.5+}}
Stealing printf from C/C++:
<
public static void main(String[] args){
double
System.out.printf("%09.3f",
System.out.println(String.format("%09.3f",value));
}
}</
{{out}}
<pre>000000007.125
000000007.125</pre>
Using <code>NumberFormat</code>:
<
import java.text.NumberFormat;
Line 844 ⟶ 1,517:
System.out.println(numForm.format(7.135));//rounds to even
}
}</
{{out}}
<pre>000000007.125
Line 852 ⟶ 1,525:
=={{header|JavaScript}}==
<
var str = ("00000" + n).slice(-5);
alert(str);</
or, put in browser URL: javascript:n=123;alert(("00000"+n).slice(-5));
Line 864 ⟶ 1,537:
requirements, but no truncation occurs; pp/1 is similar but
is likely to be more useful as the decimal point is aligned if possible.
<
tostring
| if width > length then (width - length) * "0" + . else . end;
Line 878 ⟶ 1,551:
| index(".") as $ix
| ((if $ix then $s[0:$ix] else $s end) | lpad) + "." +
(if $ix then $s[$ix+1:] | .[0:right] else "" end);</
'''Examples''':
<
produces
<
00000012.3
000333.333
0001000000</
<
produces
<
0012.3
0333.33
1000000.</
=={{header|Julia}}==
Julia's <tt>@sprintf</tt> macro provides string formatting that is similar to that of the c function of the same name. Though easy to use and efficient, <tt>@sprintf</tt> has limited flexibility, as its format specification must be a string literal, precluding its use in dynamic formatting. Greater flexibility is available via the <tt>Formatting</tt> package, which provides an implementation of Python's format specification mini-language. This solution demonstrates both of these techniques to provide the leading zero padded floating point format suggested in the task description ("%09.3f").
<syntaxhighlight lang="julia">using Printf
test = [7.125, [rand()*10^rand(0:4) for i in 1:9]]
Line 911 ⟶ 1,584:
printfmtln(fe, i)
end
</syntaxhighlight>
{{out}}
Line 940 ⟶ 1,613:
</pre>
=={{header|
<syntaxhighlight lang="scala">// version 1.0.5-2
fun main(args: Array<String>) {
val num = 7.125
println("%09.3f".format(num))
}</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|Lambdatalk}}==
Lambdatalk has no primitive for numeric output. This is a way to define it:
<syntaxhighlight lang="scheme">
{def fmt
{def padd {lambda {:n :x} {if {< :n 1} then else :x{padd {- :n 1} :x}}}}
{def trunc {lambda {:n} {if {> :n 0} then {floor :n} else {ceil :n}}}}
{lambda {:a :b :n}
{let { {:a :a} {:b :b} {:n {abs :n}} {:sign {if {>= :n 0} then + else -}}
{:int {trunc :n}}
{:dec {ceil {* 1.0e:b {abs {- :n {trunc :n}}}}} }
} {br}{padd {- :a {W.length {trunc :n}}} >}
{if {W.equal? :sign -} then else :sign}:int.:dec{padd {- :b {W.length :dec}} 0} }}}
-> fmt
{def numbers
7.125
10.7
0.980
-1000
559.8
-69.99
4970.430}
-> numbers
{S.map {fmt 10 3} {numbers}}
->
>>>>>>>>> +7.125
>>>>>>>> +10.699
>>>>>>>>> +0.980
>>>>>> -1000.000
>>>>>>> +559.799
>>>>>>>> -69.990
>>>>>> +4970.430
</syntaxhighlight>
=={{header|Lasso}}==
<syntaxhighlight lang="lasso">7.125 -> asstring(-precision = 3, -padding = 9, -padchar = '0')</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
=={{header|Logo}}==
Various collection functions, such as MAP and FILTER,
will work on individual characters of a string when given a word instead of a list.
<
output map [ifelse ? = "| | ["0] [?]] form :num :width :precision
end
print zpad 7.125 9 3 ; 00007.125</
{{works with|UCB Logo}}
As a debugging feature, you can drop down to [[C]] language printf formatting by giving -1 for the width and a format string for the precision.
<
=={{header|Lua}}==
<
function fixedprint(num, digs) --digs = number of digits before decimal point
for i = 1, digs - digits(num) do
Line 1,005 ⟶ 1,687:
end
fixedprint(7.125, 5) --> 00007.125</
An easier way to do that would be
<syntaxhighlight lang="lua">
print(string.format("%09.3d",7.125))
</syntaxhighlight>
=={{header|
We can use ? as Print
<syntaxhighlight lang="m2000 interpreter">
Print str$(7.125,"00000.000")
</syntaxhighlight>
=={{header|
<syntaxhighlight lang="maple">printf("%f", Pi);
3.141593
printf("%.0f", Pi);
3
printf("%.2f", Pi);
3.14
printf("%08.2f", Pi);
00003.14
printf("%8.2f", Pi);
3.14
printf("%-8.2f|", Pi);
3.14 |
printf("%+08.2f", Pi);
+0003.14
printf("%+0*.*f",8, 2, Pi);
+0003.14</syntaxhighlight>
=={{header|Mathematica}} / {{header|Wolfram Language}}==
<syntaxhighlight lang="mathematica">StringTake["000000" <> ToString[7.125], -9]
00007.125</syntaxhighlight>
=={{header|MATLAB}} / {{header|Octave}}==
<syntaxhighlight lang="matlab">>> disp(sprintf('%09.3f',7.125))
00007.125</syntaxhighlight>
=={{header|Maxima}}==
{{trans|Common Lisp}}
<syntaxhighlight lang="maxima">
printf(false,"~9,3,,,'0F",7.125);
</syntaxhighlight>
{{out}}
<pre>
"00007.125"
</pre>
=={{header|Mercury}}==
<syntaxhighlight lang="text">
:- module formatted_numeric_output.
:- interface.
Line 1,035 ⟶ 1,751:
main(!IO) :-
io.format("%09.3f\n", [f(7.125)], !IO).
</syntaxhighlight>
=={{header|min}}==
{{works with|min|0.37.0}}
<syntaxhighlight lang="min">(pick length - repeat prefix) ^left-pad
7.125 string "0" 9 left-pad puts!</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
=={{header|Modula-3}}==
Modules <tt>IO</tt> and <tt>Fmt</tt> must be imported before use.
<
=={{header|Nanoquery}}==
<syntaxhighlight lang="nanoquery">printer = 7.125
println format("%09.3f", printer)</syntaxhighlight>
{{out}}
<pre>00007.125</pre>
=={{header|NetRexx}}==
<
options replace format comments java crossref savelog symbols binary
Line 1,058 ⟶ 1,788:
return
</syntaxhighlight>
{{out}}
<pre>
Line 1,067 ⟶ 1,797:
=={{header|Nim}}==
<
const r = 7.125
echo r
echo
echo
echo
echo
{{out}}
<pre>7.
-7.125
7.125
Line 1,084 ⟶ 1,814:
Module <code>Out</code> must be imported before use.
<
=={{header|Objective-C}}==
<
or
<
=={{header|OCaml}}==
<
=={{header|OpenEdge/Progress}}==
<
STRING( 7.125, "99999.999" )
VIEW-AS ALERT-BOX.</
=={{header|Oz}}==
Line 1,105 ⟶ 1,835:
It doesn't seem to be possible to use leading zeros for printing,
so we implement this manually:
<
fun {PrintFloat X Prec}
{Property.put 'print.floatPrecision' Prec}
Line 1,115 ⟶ 1,845:
end
in
{System.showInfo {PrintFloat 7.125 8}}</
=={{header|PARI/GP}}==
{{works with|PARI/GP|2.4.3 and above}}
<
=={{header|Pascal}}==
<syntaxhighlight lang="pascal">procedure writeInFixedFormat(n: real);
const
wholeNumberPlaces = 5;
fractionalPlaces = 3;
zeroDigit = '0';
negative = '-';
var
signPresent: boolean;
i: integer;
begin
// NOTE: This does not catch “negative” zero.
signPresent := n < 0.0;
if signPresent then
begin
write(negative);
n := abs(n);
end;
// determine number of leading zeros
i := wholeNumberPlaces;
if n > 0 then
begin
i := i - trunc(ln(n) / ln(10));
end;
for i := i - 1 downto succ(ord(signPresent)) do
begin
write(zeroDigit);
end;
// writes n with
// - at least 0 characters in total
// - exactly fractionalPlaces post-radix digits
// rounded
write(n:0:fractionalPlaces);
end;</syntaxhighlight>
=={{header|PascalABC.NET}}==
<syntaxhighlight lang="delphi">
##
var Pi := 3.1415926536;
Println($'{Pi,8:f2}');
Println($'{Pi,-8:f3}!');
</syntaxhighlight>
{{out}}
<pre>
3.14
3.142 !
</pre>
=={{header|Perl}}==
{{works with|Perl|5.x}}
<
=={{header|Phix}}==
{{libheader|Phix/basics}}
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #7060A8;">printf<span style="color: #0000FF;">(<span style="color: #000000;">1<span style="color: #0000FF;">,<span style="color: #008000;">"%09.3f\n"<span style="color: #0000FF;">,<span style="color: #000000;">7.125<span style="color: #0000FF;">)
<!--</syntaxhighlight>-->
{{out}}
<pre>
Line 1,139 ⟶ 1,917:
=={{header|PHP}}==
<
or
<
=={{header|PicoLisp}}==
<
(pad 9 (format 7125 3 ",")) # European format</
=={{header|PL/I}}==
<syntaxhighlight lang="pl/i">
put edit (X) (p'999999.V999'); /* Western format. */
put edit (X) (p'999999,V999'); /* In European format. */
</syntaxhighlight>
<syntaxhighlight lang="text"> lz: Proc Options(main);
/*********************************************************************
* 10.09.2013 Walter Pachl one way to treat negative numbers
Line 1,179 ⟶ 1,957:
Put Skip List(z,s);
End;
End;</
{{out}}
<pre>
Line 1,192 ⟶ 1,970:
The task is underspecified, so we present a few alternatives.
<
format_print('~12,3,0,`*,`0F', [1299.19]);
;;; prints "00001299.190"
Line 1,210 ⟶ 1,988:
;;; prints "100000000000000000.000"
;;; that is uses more space if the number does not fit into
;;; fixed width</
=={{header|PowerShell}}==
Using the <code>-f</code> formatting operator and a custom format string:
<
or by invoking <code>ToString</code> on the number:
<
=={{header|Python}}==
Line 1,228 ⟶ 2,002:
specifying how many digits appear in the exponent when printed with a format.
<
r = exp(pi)-pi
print r
Line 1,237 ⟶ 2,011:
print "e=%09.4e f=%09.4f g=%09.4g!"%(-r,-r,-r)
print "e=%09.4e f=%09.4f g=%09.4g!"%(r,r,r)
print "e=%-09.4e f=%-09.4f g=%-09.4g!"%(r,r,r)</
{{out}}
<pre>
Line 1,251 ⟶ 2,025:
{{works with|Python|3}}
<
r = exp(pi)-pi
print(r)
Line 1,260 ⟶ 2,034:
print("e={0:09.4e} f={0:09.4f} g={0:09.4g}!".format(-r))
print("e={0:09.4e} f={0:09.4f} g={0:09.4g}!".format(r))
print("e={0:-09.4e} f={0:-09.4f} g={0:-09.4g}!".format(r))</
{{out}}
<pre>
Line 1,272 ⟶ 2,046:
e=1.9999e+01 f=19.9991 g=20 !
</pre>
=={{header|Quackery}}==
Behaviour of <code>format ( $ a b --> $ )</code>
Accepts a well formatted numerical string <code>$</code>, optionally with a decimal point, without validation.
<code>a</code> is the number of digits before the decimal point. <code>b</code> is the number of digits after the decimal point.
Returns a string <code>$</code> with either a leading zero or a leading space, then ''at least'' <code>a</code> digits, then a decimal point, then ''at least'' <code>b</code> digits. The digits are padded with zeroes fore and aft if required.
"''at least''" – if there are already more digits before the point than <code>a</code>, and/or more digits after the point than <code>b</code>, it will ''not'' crop the number. IMO, it is better to mess up the formatting than to display an incorrect number. Check the $ is not too long fore or aft before passing to <code>format</code> if the string may be truncated.
<syntaxhighlight lang="Quackery"> [ over find swap found ] is has ( $ c --> b )
[ over 0 peek
char - = iff
[ dip [ behead drop ]
true unrot ]
else [ false unrot ]
over char . swap find
- char 0 swap of
swap join
swap iff char -
else space
swap join ] is left-pad ( $ n --> $ )
[ over char . has not if
[ dip [ char . join ] ]
over char . swap find
dip [ over size ]
1+ - -
char 0 swap of
join ] is right-pad ( $ n --> $ )
[ dip left-pad right-pad ] is format ( $ n n --> $ )
' [ $ "7.125"
$ "-7.125"
$ "0.125"
$ "-0.12"
$ "7.12"
$ "-7.12"
$ "0.12"
$ "-0.12"
$ "7"
$ "-7"
$ "0" ]
witheach
[ do 5 3 format echo$ cr ]</syntaxhighlight>
{{out}}
<pre> 00007.125
-00007.125
00000.125
-00000.120
00007.120
-00007.120
00000.120
-00000.120
00007.000
-00007.000
00000.000</pre>
=={{header|R}}==
Line 1,277 ⟶ 2,115:
[http://www.stat.ucl.ac.be/ISdidactique/Rhelp/library/base/html/sprintf.html sprintf] brings the printf goodness one expects:
<
[1] "3.141593"
> sprintf("%.3f", pi)
Line 1,304 ⟶ 2,142:
[1] "3141592.65"
> sprintf("%G", 1e-6 * pi)
[1] "3.14159E-06"</
formatC also provides C-style string formatting.
<
# "00007.125"</
Other string formatting functions include
Line 1,315 ⟶ 2,153:
=={{header|Racket}}==
<syntaxhighlight lang="racket">
-> (displayln (~a 7.125 #:width 9 #:align 'right #:pad-string "0"))
00007.125
</syntaxhighlight>
=={{header|Raku}}==
(formerly Perl 6)
<syntaxhighlight lang="raku" line>say 7.125.fmt('%09.3f');</syntaxhighlight>
=={{header|Raven}}==
<syntaxhighlight lang="raven">7.125 "%09.3f" print
00007.125</syntaxhighlight>
{{trans|Python}}
<syntaxhighlight lang="raven">define PI
-1 acos
PI exp PI - as r
r print "\n" print
r "" prefer "s=%s!\n" print
r dup dup dup dup "e=%e f=%f g=%g G=%G!\n" print
-1 r * dup dup "e=%9.4e f=%9.4f g=%9.4g!\n" print
r dup dup "e=%9.4e f=%9.4f g=%9.4g!\n" print
r dup dup "e=%-9.4e f=%-9.4f g=%-9.4g!\n" print
r -1 * dup dup "e=%09.4e f=%09.4f g=%09.4g!\n" print
r dup dup "e=%09.4e f=%09.4f g=%09.4g!\n" print
r dup dup "e=%-09.4e f=%-09.4f g=%-09.4g!\n" print</syntaxhighlight>
<syntaxhighlight lang="raven">19.9991
s=19.999100!
e=1.999910e+01 f=19.999100 g=19.9991 G=19.9991!
e=-1.9999e+01 f= -19.9991 g= -20!
e=1.9999e+01 f= 19.9991 g= 20!
e=1.9999e+01 f=19.9991 g=20 !
e=-1.9999e+01 f=-019.9991 g=-00000020!
e=1.9999e+01 f=0019.9991 g=000000020!
e=1.9999e+01 f=19.9991 g=20 !</syntaxhighlight>
=={{header|REBOL}}==
<
Title: "Formatted Numeric Output"
URL: http://rosettacode.org/wiki/Formatted_Numeric_Output
]
Line 1,358 ⟶ 2,226:
print [zeropad 9 negate 7.125]
print [zeropad 9 7.125]
print 7.125</
{{out}}
Line 1,367 ⟶ 2,235:
00007.125
7.125</pre>
=={{header|REXX}}==
<
a=7.125
b=translate(format(a,10),0,' ')
Line 1,456 ⟶ 2,296:
say 't=' t
say 'u=' u
/*stick a fork in it, we're done.*/</
{{out}}
<pre style="height:30ex">
Line 1,490 ⟶ 2,330:
</pre>
=={{header|Ring}}==
<syntaxhighlight lang="ring">
decimals(3)
see fixedprint(7.125, 5) + nl
func fixedprint num, digs
for i = 1 to digs - len(string(floor(num)))
see "0"
next
see num + nl
</syntaxhighlight>
=={{header|RPL}}==
Number formatting in RPL is at 1980s standards (ANSI BASIC X3J2, 1983 to be precise). If the user wants something else, she/he has to write some code, formatting the number as a string.
≪ 1 CF '''IF''' OVER 0 < '''THEN''' 1 SF 1 - '''END'''
SWAP ABS →STR
'''WHILE''' DUP2 SIZE > '''REPEAT'''
"0" SWAP + '''END'''
'''IF''' 1 FS? '''THEN''' "-" SWAP + '''END'''
SWAP DROP
≫ ''''TASK'''' STO
{{in}}
<pre>
7.125 9 TASK
-7.125 9 TASK
</pre>
{{out}}
<pre>
2: "00007.125"
1: "-0007.125"
</pre>
=={{header|Ruby}}==
<
printf " %9.3f\n", r #=> 7.125
printf " %09.3f\n", r #=> 00007.125
Line 1,499 ⟶ 2,370:
puts " %09.3f" % r #=> 00007.125
puts " %09.3f" % -r #=> -0007.125
puts " %+09.3f" % r #=> +0007.125</
=={{header|
<syntaxhighlight lang="rust">
fn main() {
let x = 7.125;
println!("{:9}", x);
println!("{:09}", x);
println!("{:9}", -x);
println!("{:09}", -x);
}
</syntaxhighlight>
{{out}}
<pre>
7.125
00007.125
-7.125
-0007.125
</pre>
=={{header|Sather}}==
The Fill options should fill with any character, but it is still (!) not implemented; according to [http://www.icsi.berkeley.edu/~sather/Documentation/Library/LibraryBrowser/short-FMT.html ICSI Sather library documentation] (GNU Sather library documentation is missing) works only for string, bools and characters, but a test has revealed it does not work in either way (yet) (GNU Sather v1.2.3).
<
main is
#OUT + #FMT("<F0 #####.###>", 7.1257) + "\n";
#OUT + #FMT("<F0 #####.###>", 7.1254) + "\n";
end;
end;</
Luckly the C-like formats are supported too:
<
=={{header|Scala}}==
Line 1,522 ⟶ 2,409:
{{works with|Scala|2.10.2}}
As shown in a [https://github.com/scala-ide/scala-worksheet/wiki/Getting-Started Scala Worksheet]:
<
val r = 7.125 //> r : Double = 7.125
println(f" ${-r}%9.3f"); //> -7,125
Line 1,531 ⟶ 2,418:
println(f" $r%-9.3f"); //> 7,125
println(f" $r%+09.3f"); //> +0007,125
}</
=={{header|Scheme}}==
Line 1,540 ⟶ 2,427:
Gauche/share/gauche/site/lib/
<
(load "srfi-54.scm") ;; Don't ask.
Line 1,547 ⟶ 2,434:
(dotimes (i 4)
(print (cat x 25 3.0 #\0 (list #\, (- 4 i)))))
</syntaxhighlight>
{{output}}
<pre>
Line 1,557 ⟶ 2,444:
=={{header|Seed7}}==
<
include "float.s7i";
Line 1,570 ⟶ 2,457:
writeln( r digits 3);
writeln(-r digits 3);
end func;</
{{out}}
Line 1,583 ⟶ 2,470:
=={{header|Sidef}}==
<
or
<
{{out}}
<pre>
Line 1,593 ⟶ 2,480:
=={{header|Smalltalk}}==
{{works with|Pharo 1.1.1}}
<
"output: 007.125000"</
{{works with|Smalltalk/X}}
<
"output: 00007.125"</
notice that printOn:* is implemented in Object;thus any object can be printed with padding this way.
Using the PrintfScanf utility:
<
=={{header|SQL}}==
{{works with|MS SQL|2005}}
<
select @n=123
select substring(convert(char(5), 10000+@n),2,4) as FourDigits
Line 1,612 ⟶ 2,499:
set @n=5
print "TwoDigits: " + substring(convert(char(3), 100+@n),2,2)
--Output: 05</
=={{header|Standard ML}}==
<
{{works with|SML/NJ}}
<
=={{header|Stata}}==
See '''[https://www.stata.com/help.cgi?format format]''' in Stata help.
<syntaxhighlight lang="stata">. display %010.3f (57/8)
000007.125</syntaxhighlight>
=={{header|Suneido}}==
<syntaxhighlight lang
{{out}}
Line 1,626 ⟶ 2,519:
=={{header|Tcl}}==
<
format "%08.3f" $number</
Use with <tt>puts</tt> if output is desired to go to a channel.
=={{header|Toka}}==
<
value n
123 to n
2 import printf
" %08d" n printf</
=={{header|Ursala}}==
Line 1,648 ⟶ 2,535:
library function by that name and can cope with any of
the same numeric formats.
<
x = 7.125
Line 1,654 ⟶ 2,541:
#show+
t = <printf/'%09.3f' x></
{{out}}
<pre>00007.125</pre>
=={{header|
<syntaxhighlight lang="vala">void main() {
double r = 7.125;
print(" %9.3f\n", -r);
print(" %9.3f\n",r);
print(" %-9.3f\n",r);
print(" %09.3f\n",-r);
print(" %09.3f\n",r);
print(" %-09.3f\n",r);
}</syntaxhighlight>
{{out}}
<pre>
-7.125
7.125
7.125
-0007.125
00007.125
7.125
</pre>
=={{header|Vedit macro language}}==
Line 1,680 ⟶ 2,569:
The following example uses 3 decimal places (value scaled by 1000).
The output is inserted at current edit position.
<
Num_Ins(#1, FILL+COUNT, 9) Char(-3) Ins_Char('.')</
{{out}}
<pre>
00007.125
</pre>
=={{header|V (Vlang)}}==
<syntaxhighlight lang="Zig">
fn main() {
// refer to string interpolation and format place holding in documentation
// pad with zeros towards the left
num := 7.125
println("${num:09f}")
}
</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|Wren}}==
{{libheader|Wren-fmt}}
<syntaxhighlight lang="wren">import "./fmt" for Fmt
var n = 7.125
System.print(Fmt.rjust(9, n, "0"))</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
=={{header|XPL0}}==
<syntaxhighlight lang="xpl0">int C;
[Format(5, 3); \5 places before decimal point and 3 after
RlOut(8, 7.125); \output real number to internal buffer
loop [C:= ChIn(8); \read character from internal buffer
if C = ^ then C:= ^0; \change leading space characters to zeros
if C = $1A then quit; \exit loop on end-of-file (EOF = end of chars)
ChOut(0, C); \display digit character on terminal
];
]</syntaxhighlight>
{{out}}
<pre>
00007.125
</pre>
Line 1,692 ⟶ 2,623:
=={{header|zkl}}==
<
"%09.3e".fmt(7.125) //-->"7.125e+00"
"%09.3g".fmt(7.125) //-->"000007.12"
"%09d".fmt(7.125) //-->"000000007"
"%09,d".fmt(78901.125)//-->"00078,901"</
|
Latest revision as of 10:41, 26 June 2024
You are encouraged to solve this task according to the task description, using any language you may know.
- Task
Express a number in decimal as a fixed-length string with leading zeros.
For example, the number 7.125 could be expressed as 00007.125.
11l
print(‘#05.3’.format(7.125))
- Output:
00007.125
8086 Assembly
The PrintString
and PrintChar
routines was omitted to keep this short. They handle the printing of null-terminated strings.
As an added bonus, this program supports trailing zeroes, but since the example didn't have any it won't get run.
.model small
.stack 1024
.data
;data segment is unused in this program
.code
start:
mov ax,@code
mov ds,ax
mov es,ax
cld ;make lodsb, etc. auto-increment
mov al, byte ptr [ds:LeadingZeroes]
mov cl,al
mov ch,0
mov al,'0' ;30h
jcxz DonePrintingLeadingZeroes ;there are leading zeroes so we won't skip that section. This branch is not taken.
printLeadingZeroes:
call PrintChar ;print ascii 0 to the terminal 4 times
loop printLeadingZeroes
DonePrintingLeadingZeroes:
mov si, offset TestString
call PrintString
mov al, byte ptr [ds:TrailingZeroes]
mov cl,al
mov ch,0
mov al,'0' ;30h
jcxz DonePrintingTrailingZeroes ;there are none in this example so this branch is always taken
printTrailingZeroes:
call PrintChar
loop printTrailingZeroes
DonePrintingTrailingZeroes:
mov ax,4C00h
int 21h ;exit to DOS
TestString byte "7.125",0
LeadingZeroes byte 4 ;number of leading zeroes to print
TrailingZeroes byte 0 ;number of trailing zeroes to print
- Output:
C:\>prog.exe 00007.125 C:\>_
8th
7.125 "%09.3f" s:strfmt
. cr
- Output:
00007.125
AArch64 Assembly
/* ARM assembly AARCH64 Raspberry PI 3B */
/* program formatNum64.s */
/* use C library printf ha, ha, ha !!! */
/*******************************************/
/* Constantes file */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly*/
.include "../includeConstantesARM64.inc"
/*******************************************/
/* Initialized data */
/*******************************************/
.data
szFormat1: .asciz " %09.3f\n"
.align 4
sfNumber: .double 0f-7125E-3
sfNumber1: .double 0f7125E-3
/*******************************************/
/* UnInitialized data */
/*******************************************/
.bss
.align 4
/*******************************************/
/* code section */
/*******************************************/
.text
.global main
main: // entry of program
ldr x0,qAdrszFormat1 // format
ldr x1,qAdrsfNumber // float number address
ldr d0,[x1] // load float number in d0
bl printf // call C function !!!
ldr x0,qAdrszFormat1
ldr x1,qAdrsfNumber1
ldr d0,[x1]
bl printf
100: // standard end of the program
mov x0,0 // return code
mov x8,EXIT // request to exit program
svc 0 // perform the system call
qAdrszFormat1: .quad szFormat1
qAdrsfNumber: .quad sfNumber
qAdrsfNumber1: .quad sfNumber1
- Output:
-0007.125 00007.125
Ada
with Ada.Text_Io.Editing; use Ada.Text_Io.Editing;
with Ada.Text_Io; use Ada.Text_Io;
procedure Zero_Fill is
Pic_String: String := "<999999.99>";
Pic : Picture := To_Picture(Pic_String);
type Money is delta 0.01 digits 8;
package Money_Output is new Decimal_Output(Money);
use Money_Output;
Value : Money := 37.25;
begin
Put(Item => Value, Pic => Pic);
end Zero_Fill;
- Output:
000037.25
Aime
o_form("/w9s0/\n", 7.125);
o_form("/w12d6p6/\n", -12.0625);
o_form("/w12d6p6/\n", 7.125);
- Output:
00007.125 -12.0625 7.125
ALGOL 68
main:(
REAL r=exp(pi)-pi;
print((r,newline));
printf(($g(-16,4)l$,-r));
printf(($g(-16,4)l$,r));
printf(($g( 16,4)l$,r));
printf(($g( 16,4,1)l$,r));
printf(($-dddd.ddddl$,-r));
printf(($-dddd.ddddl$,r));
printf(($+dddd.ddddl$,r));
printf(($ddddd.ddddl$,r));
printf(($zzzzd.ddddl$,r));
printf(($zzzz-d.ddddl$,r));
printf(($zzzz-d.ddddedl$,r));
printf(($zzzz-d.ddddeddl$,r));
printf(($4z-d.4de4dl$,r))
)
- Output:
+1.99990999791895e +1 -19.9991 19.9991 +19.9991 +19999099.979e-6 -0019.9991 0019.9991 +0019.9991 00019.9991 00019.9991 19.9991 1.9999e1 1.9999e01 1.9999e0001
Amazing Hopper
#include <basico.h>
#proto padzeros(_X_,_S_,_D_)
#proto padmoney(_N_,_D_,_F_,_S_,_P_)
algoritmo
n={}, '125, 12.39802, 0.0003221, -0.0045, 457897.789' enlistar en 'n'
fijar separador 'NL'
imprimir( "Express a number in decimal as a fixed-length string with leading zeros:\n\n",\
#(pad zeros(n,19,5)), "\n\n",\
#(pad zeros(n,19,0)), "\n\n",\
#(pad zeros( (-9873000155.584),19,1)), "\n\n",\
"Bonus track:\n\n",\
#(lpad( " ",20,string(n))), "\n\n",\
#(lpad( " ",20,notation(n))),"\n\n",\
#(pad money(n,1,".",19,"$")),"\n\n",\
#(pad money(1980.67,1,"_",16,"USD$"),NL))
terminar
subrutinas
pad zeros(n, l, d)
decimales 'd'
s=0, sgn=0
#( s = string( n * sgn:=(sign(n)) ) )
#( sgn = string(sgn) )
si ( s, es matriz? )
mapear( #(sgn=="-1"), "-", sgn )
mapear( #(sgn=="1"), " ", sgn )
sino
#(sgn=="-1"), entonces{ "-",mover a 'sgn' }
#(sgn=="1"), entonces{ " ",mover a 'sgn' }
fin si
#(cat( sgn, lpad( "0",l,s)))
decimales normales
retornar
pad money(num, dec, fill, size, prefix)
#(cat(prefix,lpad(fill,size,money(dec,num))))
retornar
- Output:
Express a number in decimal as a fixed-length string with leading zeros: 0000000000125.00000 0000000000012.39802 0000000000000.00032 -0000000000000.00450 0000000457897.78900 0000000000000000125 0000000000000000012 0000000000000000000 -0000000000000000000 0000000000000457898 -00000009873000155.6 Bonus track: 125 12.398020 0.000322 -0.004500 457897.789000 1.250000e+02 1.239802e+01 3.221000e-04 -4.500000e-03 4.578978e+05 $..............125.0 $...............12.4 $................0.0 $...............-0.0 $..........457,897.8 USD$_________1,980.7
AmigaE
The function RealF can be used to convert a floating point value into a string, with a specified number of decimal digits. But to fit the string into a greater container prepending 0 we must write our own function. (The one here proposed has no a flag for the alignment of the result inside the containing string)
PROC newRealF(es, fl, digit, len=0, zeros=TRUE)
DEF s, t, i
IF (len = 0) OR (len < (digit+3))
RETURN RealF(es, fl, digit)
ELSE
s := String(len)
t := RealF(es, fl, digit)
FOR i := 0 TO len-EstrLen(t)-1 DO StrAdd(s, IF zeros THEN '0' ELSE ' ')
StrAdd(s, t)
StrCopy(es, s)
DisposeLink(s)
DisposeLink(t)
ENDIF
ENDPROC es
PROC main()
DEF s[100] : STRING
WriteF('\s\n', newRealF(s, 7.125, 3,9))
ENDPROC
APL
'ZF15.9' ⎕FMT 7.125
00007.125000000
APL's ⎕FMT is similar to C's printf (only it operates on arrays).
ARM Assembly
/* ARM assembly Raspberry PI */
/* program formatNum.s */
/* use C library printf ha, ha, ha !!! */
/* Constantes */
.equ EXIT, 1 @ Linux syscall
/* Initialized data */
.data
szFormat1: .asciz " %09.3f\n"
.align 4
sfNumber: .double 0f-7125E-3
sfNumber1: .double 0f7125E-3
/* UnInitialized data */
.bss
.align 4
/* code section */
.text
.global main
main: @ entry of program
push {fp,lr} @ saves registers
ldr r0,iAdrszFormat1 @ format
ldr r1,iAdrsfNumber @ number address
ldr r2,[r1] @ load first 4 bytes
ldr r3,[r1,#4] @ load last 4 bytes
bl printf @ call C function !!!
ldr r0,iAdrszFormat1
ldr r1,iAdrsfNumber1
ldr r2,[r1]
ldr r3,[r1,#4]
bl printf
100: @ standard end of the program
mov r0, #0 @ return code
pop {fp,lr} @restaur registers
mov r7, #EXIT @ request to exit program
swi 0 @ perform the system call
iAdrszFormat1: .int szFormat1
iAdrsfNumber: .int sfNumber
iAdrsfNumber1: .int sfNumber1
Arturo
r: 7.125
print r
print to :string .format: "09.3f" r
- Output:
7.125 00007.125
AutoHotkey
contributed by Laszlo on the ahk forum
MsgBox % pad(7.25,7) ; 0007.25
MsgBox % pad(-7.25,7) ; -007.25
pad(x,len) { ; pad with 0's from left to len chars
IfLess x,0, Return "-" pad(SubStr(x,2),len-1)
VarSetCapacity(p,len,Asc("0"))
Return SubStr(p x,1-len)
}
AWK
BEGIN {
r=7.125
printf " %9.3f\n",-r
printf " %9.3f\n",r
printf " %-9.3f\n",r
printf " %09.3f\n",-r
printf " %09.3f\n",r
printf " %-09.3f\n",r
}
Same output as the C code.
BASIC
ANSI BASIC
100 REM Formatted numeric output
110 LET N = 7.125
120 PRINT USING ("%%%%.###"): N
130 PRINT USING ("****.###"): N
140 PRINT USING ("####.###"): N
150 PRINT USING ("+%%%.###"): N
160 PRINT USING ("+%%%.###"): -N
170 PRINT USING (".###^^^^^"): N
180 PRINT USING ("#.###^^^^^"): N
190 PRINT USING ("##.###^^^^^"): N
200 PRINT USING ("+.###^^^^^"): -N
210 END
- Output:
0007.125 ***7.125 7.125 +007.125 -007.125 .713E+001 7.125E+000 71.250E-001 -.713E+001
BaCon
BaCon can use C style printf format specifiers.
' Formatted numeric output
n = 7.125
PRINT n FORMAT "%09.3f\n"
- Output:
prompt$ ./formatted 00007.125
BBC BASIC
PRINT FNformat(PI, 9, 3)
PRINT FNformat(-PI, 9, 3)
END
DEF FNformat(n, sl%, dp%)
LOCAL @%
@% = &1020000 OR dp% << 8
IF n >= 0 THEN
= RIGHT$(STRING$(sl%,"0") + STR$(n), sl%)
ENDIF
= "-" + RIGHT$(STRING$(sl%,"0") + STR$(-n), sl%-1)
- Output:
00003.142 -0003.142
BASIC256
n = 7.125
print rjust(string(n), 8, "0") # => 00007.125
print zfill(string(n), 8) # => 00007.125
Chipmunk Basic
10 print using "0000#.###";7.125
- Output:
00007.125
FreeBASIC
' FB 1.05.0 Win64
#Include "vbcompat.bi"
Dim s As String = Format(7.125, "00000.0##")
Print s
Sleep
- Output:
00007.125
FutureBasic
window 1, @"Formatted Numeric Output", (0,0,480,270)
print using "0000#.###";7.125
HandleEvents
Output:
00007.125
IS-BASIC
100 LET F=7.125
110 PRINT USING "-%%%%%.###":F
Liberty BASIC
Custom function builds on the supplied 'print using( "###.###", n)'.
NB no check that this does not truncate high-order digits...
and remember LB calculates with more figures than its normal 'print' displays.
for i = 1 to 10
n = rnd(1) * 10 ^ (int(10 * rnd(1)) - 2)
print "Raw number = "; n, "Using custom function = "; FormattedPrint$(n, 16, 5)
next i
end
function FormattedPrint$(n, length, decPlaces)
format$ = "#."
for i = 1 to decPlaces
format$ = format$ + "#"
next i
n$ = using(format$, n) ' remove leading spaces if less than 3 figs left of decimal
' add leading zeros
for i = 1 to len(n$)
c$ = mid$(n$, i, 1)
if c$ = " " or c$ = "%" then nn$ = nn$ + "0" else nn$ = nn$ + c$
next i
FormattedPrint$ = right$( "000000000000" +nn$, length) ' chop to required length
end function
- Output:
Raw number = 0.92349667e-2 Using custom function = 0000000000.00923 Raw number = 0.45244905 Using custom function = 0000000000.45245 Raw number = 3084321.68 Using custom function = 0003084321.68220 Raw number = 545.557351 Using custom function = 0000000545.55735 Raw number = 765.455263 Using custom function = 0000000765.45526 Raw number = 650413.092 Using custom function = 0000650413.09248 Raw number = 0.85554345 Using custom function = 0000000000.85554 Raw number = 296.155771 Using custom function = 0000000296.15577 Raw number = 8.3816344 Using custom function = 0000000008.38163 Raw number = 0.1007265e-2 Using custom function = 0000000000.00101
Nascom BASIC
10 REM Formatted numeric output
20 CLS
30 LET N=7.125
40 LET W=9
50 GOSUB 1000
60 SCREEN 10,9:PRINT N$
70 END
1000 REM Formatted fixed-length
1010 N$=STR$(N):N$=RIGHT$(N$,LEN(N$)-1)
1020 FOR I=1 TO W-LEN(N$)
1030 N$="0"+N$
1040 NEXT I
1050 RETURN
PureBasic
Using RSet() to pad 7.125 with 3 decimals converted to a string, to 8 char length.
RSet(StrF(7.125,3),8,"0") ; Will be 0007.125
QBasic
n = 7.125
PRINT USING ("0000#.###"); n ' => 00007.125
Run BASIC
print right$("00000";using("#####.##",7.125),8) ' => 00007.13
SmallBASIC
print format("00000.000", 7.125)
TI-89 BASIC
right("00000" & format(7.12511, "f3"), 9)
True BASIC
LET n = 7.125
PRINT USING ("0000#.###"): n ! => 0007.125
END
VBA
Option Explicit
Sub Main()
Debug.Print fFormat(13, 2, 1230.3333)
Debug.Print fFormat(2, 13, 1230.3333)
Debug.Print fFormat(10, 5, 0.3333)
Debug.Print fFormat(13, 2, 1230)
End Sub
Private Function fFormat(NbInt As Integer, NbDec As Integer, Nb As Double) As String
'NbInt : Lenght of integral part
'NbDec : Lenght of decimal part
'Nb : decimal on integer number
Dim u As String, v As String, i As Integer
u = CStr(Nb)
i = InStr(u, Application.DecimalSeparator)
If i > 0 Then
v = Mid(u, i + 1)
u = Left(u, i - 1)
fFormat = Right(String(NbInt, "0") & u, NbInt) & Application.DecimalSeparator & Left(v & String(NbDec, "0"), NbDec)
Else
fFormat = Right(String(NbInt, "0") & u, NbInt) & Application.DecimalSeparator & String(NbDec, "0")
End If
End Function
- Output:
0000000001230.33 30.3333000000000 0000000000.33330 0000000001230.00
VBScript
a = 1234.5678
' Round to three decimal places. Groups by default. Output = "1,234.568".
WScript.Echo FormatNumber(a, 3)
' Truncate to three decimal places. Output = "1234.567".
WScript.Echo Left(a, InStr(a, ".") + 3)
' Round to a whole number. Grouping disabled. Output = "1235".
WScript.Echo FormatNumber(a, 0, , , False)
' Use integer portion only and pad with zeroes to fill 8 chars. Output = "00001234".
WScript.Echo Right("00000000" & Int(a), 8)
Visual Basic
Debug.Print Format$(7.125, "00000.000")
Output (the decimal separator used depends on the system's language settings):
00007.125
XBasic
PROGRAM "progname"
VERSION "0.0000"
DECLARE FUNCTION Entry ()
FUNCTION Entry ()
n! = 7.125
PRINT FORMAT$("0000#.###", n!)
END FUNCTION
END PROGRAM
- Output:
00007.125
Yabasic
n = 7.125
print n using ("#####.###") // => 7.125
print str$(n, "%09.3f") // => 00007.125
ZX Spectrum Basic
10 LET n=7.125
20 LET width=9
30 GO SUB 1000
40 PRINT AT 10,10;n$
50 STOP
1000 REM Formatted fixed-length
1010 LET n$=STR$ n
1020 FOR i=1 TO width-LEN n$
1030 LET n$="0"+n$
1040 NEXT i
1050 RETURN
bc
First define a custom function for numeric output.
/*
* Print number n, using at least c characters.
*
* Different from normal, this function:
* 1. Uses the current ibase (not the obase) to print the number.
* 2. Prunes "0" digits from the right, so p(1.500, 1) prints "1.5".
* 3. Pads "0" digits to the left, so p(-1.5, 6) prints "-001.5".
* 4. Never prints a newline.
*
* Use an assignment, as t = p(1.5, 1), to discard the return value
* from this function so that bc not prints the return value.
*/
define p(n, c) {
auto d, d[], f, f[], i, m, r, s, v
s = scale /* Save original scale. */
if (n < 0) {
"-" /* Print negative sign. */
c -= 1
n = -n /* Remove negative sign from n. */
}
/* d[] takes digits before the radix point. */
scale = 0
for (m = n / 1; m != 0; m /= 10) d[d++] = m % 10
/* f[] takes digits after the radix point. */
r = n - (n / 1) /* r is these digits. */
scale = scale(n)
f = -1 /* f counts the digits of r. */
for (m = r + 1; m != 0; m /= 10) f += 1
scale = 0
r = r * (10 ^ f) / 1 /* Remove radix point from r. */
if (r != 0) {
while (r % 10 == 0) { /* Prune digits. */
f -= 1
r /= 10
}
for (i = 0; i < f; i++) {
f[i] = r % 10
r /= 10
}
}
/* Pad "0" digits to reach c characters. */
c -= d
if (f > 0) c -= 1 + f
for (1; c > 0; c--) "0" /* Print "0". */
/* i = index, m = maximum index, r = digit to print. */
m = d + f
for (i = 1; i <= m; i++) {
if (i <= d) r = d[d - i]
if (i > d) r = f[m - i]
if (i == d + 1) "." /* Print radix point. */
v = 0
if (r == v++) "0" /* Print digit. */
if (r == v++) "1"
if (r == v++) "2" /* r == 2 might not work, */
if (r == v++) "3" /* unless ibase is ten. */
if (r == v++) "4"
if (r == v++) "5"
if (r == v++) "6"
if (r == v++) "7"
if (r == v++) "8"
if (r == v++) "9"
if (r == v++) "A"
if (r == v++) "B"
if (r == v++) "C"
if (r == v++) "D"
if (r == v++) "E"
if (r == v++) "F"
}
scale = s /* Restore original scale. */
}
Then use this function to print 7.125 with 9 characters.
x = 7.125
"Decimal: "; t = p(x, 9); "
"
ibase = 16
"Hexadecimal: "; t = p(x, 9); "
"
ibase = 2
"Binary: "; t = p(x, 1001); "
"
quit
- Output:
Decimal: 00007.125 Hexadecimal: 0000007.2 Binary: 00111.001
Beads
beads 1 program 'Formatted numeric output'
calc main_init
var num = 7.125
log to_str(num, min:9, zero_pad:Y)
- Output:
00007.125
C
#include <stdio.h>
main(){
float r=7.125;
printf(" %9.3f\n",-r);
printf(" %9.3f\n",r);
printf(" %-9.3f\n",r);
printf(" %09.3f\n",-r);
printf(" %09.3f\n",r);
printf(" %-09.3f\n",r);
return 0;
}
- Output:
-7.125 7.125 7.125 -0007.125 00007.125 7.125
C#
class Program
{
static void Main(string[] args)
{
float myNumbers = 7.125F;
string strnumber = Convert.ToString(myNumbers);
Console.WriteLine(strnumber.PadLeft(9, '0'));
Console.ReadLine();
}
}
C++
#include <iostream>
#include <iomanip>
int main()
{
std::cout << std::setfill('0') << std::setw(9) << std::fixed << std::setprecision(3) << 7.125 << std::endl;
return 0;
}
C++20
#include <iostream>
#include <format>
int main()
{
std::cout << std::format("{:09.3f}\n", 7.125);
return 0;
}
Clojure
Using cl format strings
(cl-format true "~9,3,,,'0F" 7.125)
Using java format strings
(printf "%09.3f" 7.125) ; format works the same way (without side the effect of printing)
COBOL
This is actually the easiest kind of numeric output to achieve in COBOL, because it requires no adjustments from the way numbers are stored internally (in fixed-point decimal). Each variable declaration requires a PIC or PICTURE clause describing the kind of data that will be stored there. In this case, we have 9 (a decimal digit), repeated five times; then V, the decimal point (cf. French virgule); and then three more decimal digits. Other terms that can appear in PICTURE clauses include A (a letter of the alphabet), X (a character), and Z (a decimal digit to be printed with leading spaces instead of leading zeros).
IDENTIFICATION DIVISION.
PROGRAM-ID. NUMERIC-OUTPUT-PROGRAM.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-EXAMPLE.
05 X PIC 9(5)V9(3).
PROCEDURE DIVISION.
MOVE 7.125 TO X.
DISPLAY X UPON CONSOLE.
STOP RUN.
- Output:
00007.125
Common Lisp
(format t "~9,3,,,'0F" 7.125)
D
import std.stdio;
void main() {
immutable r = 7.125;
writefln(" %9.3f", -r);
writefln(" %9.3f", r);
writefln(" %-9.3f", r);
writefln(" %09.3f", -r);
writefln(" %09.3f", r);
writefln(" %-09.3f", r);
}
- Output:
-7.125 7.125 7.125 -0007.125 00007.125 7.125
DBL
D5=7125
A10=D5,'-ZZZZX.XXX' ; 7.125
A10=D5,'-ZZZZX.XXX' [LEFT] ;7.125
A10=D5,'-XXXXX.XXX' ; 00007.125
A10=-D5,'-ZZZZX.XXX' ;- 7.125
A10=-D5,'-ZZZZX.XXX' [LEFT] ;- 7.125
A10=-D5,'-XXXXX.XXX' [LEFT] ;-00007.125
A10=-D5,'XXXXX.XXX-' ;00007.125-
A10=-D5,'ZZZZX.XXX-' ; 7.125-
A10=-D5,'ZZZZX.XXX-' [LEFT] ;7.125-
A10=1500055,'ZZZ,ZZX.XX ; 15,000.55
dc
First define a custom function for numeric output.
[*
* (n) (c) lpx
* Print number n, using at least c characters.
*
* Different from normal, this function:
* 1. Uses the current ibase (not the obase) to print the number.
* 2. Prunes "0" digits from the right, so [1.500 1 lxp] prints "1.5".
* 3. Pads "0" digits to the left, so [_1.5 6 lxp] prints "-001.5".
* 4. Never prints a newline.
*]sz
[
Sc Sn [Local n, c = from stack.]sz
K Ss [Local s = original scale.]sz
[Reserve local variables D, F, I, L.]sz
0 SD 0 SF 0 SI 0 SL
[ [If n < 0:]sz
[-]P [Print negative sign.]sz
lc 1 - sc [Decrement c.]sz
0 ln - sn [Negate n.]sz
]sI 0 ln <I
[*
* Array D[] takes digits before the radix point.
*]sz
0 k [scale = 0]sz
0 Sd [Local d = 0]sz
ln 1 / [Push digits before radix point.]sz
[ [Loop to fill D[]:]sz
d 10 % ld :D [D[d] = next digit.]sz
ld 1 + sd [Increment d.]sz
10 / [Remove digit.]sz
d 0 !=L [Loop until no digits.]sz
]sL d 0 !=L
sz [Pop digits.]sz
[*
* Array F[] takes digits after the radix point.
*]sz
ln ln 1 / - [Push digits after radix point.]sz
d X k [scale = enough.]sz
_1 Sf [Local f = -1]sz
d 1 + [Push 1 + digits after radix point.]sz
[ [Loop to count digits:]sz
lf 1 + sf [Increment f.]sz
10 / [Remove digit.]sz
d 0 !=L [Loop until no digits.]sz
]sL d 0 !=L
sz [Pop 1 + digits.]sz
0 k [scale = 0]sz
10 lf ^ * 1 / [Remove radix point from digits.]sz
[ [Loop to prune digits:]sz
lf 1 - sf [Decrement f.]sz
10 / [Remove digit.]sz
d 10 % 0 =L [Loop while last digit is 0.]sz
]sL d 10 % 0 =L
0 Si [Local i = 0]sz
[ [Loop to fill F[]:]sz
d 10 % li :F [F[i] = next digit.]sz
10 / [Remove digit.]sz
li 1 + si [Increment i.]sz
lf li <L [Loop while i < f.]sz
]sL lf li <L
sz [Pop digits.]sz
lc ld - [Push count = c - d.]sz
[ [If f > 0:]sz
1 lf + - [Subtract 1 radix point + f from count.]sz
]sI 0 lf >I
[ [Loop:]sz
[0]P [Print a padding "0".]sz
1 - [Decrement count.]sz
d 0 <L [Loop while count > 0.]sz
]sL d 0 <L
sz [Pop count.]sz
[ [Local function (digit) lPx:]sz
[ [Execute:]sz
[*
* Push the string that matches the digit.
*]sz
[[0] 2Q]sI d 0 =I [[1] 2Q]sI d 1 =I [[2] 2Q]sI d 2 =I [[3] 2Q]sI d 3 =I
[[4] 2Q]sI d 4 =I [[5] 2Q]sI d 5 =I [[6] 2Q]sI d 6 =I [[7] 2Q]sI d 7 =I
[[8] 2Q]sI d 8 =I [[9] 2Q]sI d 9 =I [[A] 2Q]sI d A =I [[B] 2Q]sI d B =I
[[C] 2Q]sI d C =I [[D] 2Q]sI d D =I [[E] 2Q]sI d E =I [[F] 2Q]sI d F =I
[?] [Else push "?".]sz
]x
P [Print the string.]sz
sz [Pop the digit.]sz
]SP
ld [Push counter = d.]sz
[ [Loop:]sz
1 - [Decrement counter.]sz
d ;D lPx [Print digit D[counter].]sz
d 0 <L [Loop while counter > 0.]sz
]sL d 0 <L
sz [Pop counter.]sz
[ [If f > 0:]sz
[.]P [Print radix point.]sz
lf [Push counter = f.]sz
[ [Loop:]sz
1 - [Decrement counter.]sz
d ;F lPx [Print digit F[counter].]sz
d 0 <L [Loop while counter > 0.]sz
]sL d 0 <L
sz [Pop counter.]sz
]sI 0 lf >I
[Restore variables n, c, d, f, D, F, L, I, P.]sz
Lnsz Lcsz Ldsz Lfsz LDsz LFsz LLsz LIsz LPsz
Ls k [Restore variable s. Restore original scale.]sz
]sp
Then use this function to print 7.125 with 9 characters:
7.125 sx
[Decimal: ]P lx 9 lpx [
]P 16 i [Hexadecimal: ]P lx 9 lpx [
]P 2 i [Binary: ]P lx 9 lpx [
]P
- Output:
Decimal: 00007.125 Hexadecimal: 0000007.2 Binary: 00111.001
Delphi
program FormattedNumericOutput;
{$APPTYPE CONSOLE}
uses
SysUtils;
const
fVal = 7.125;
begin
Writeln(FormatFloat('0000#.000',fVal));
Writeln(FormatFloat('0000#.0000000',fVal));
Writeln(FormatFloat('##.0000000',fVal));
Writeln(FormatFloat('0',fVal));
Writeln(FormatFloat('#.#E-0',fVal));
Writeln(FormatFloat('#,##0.00;;Zero',fVal));
Readln;
end.
- Output:
00007.125 00007.1250000 7.1250000 7 7.1E0 7.13
Eiffel
note
description : "{
2 Examples are given.
The first example uses the standard library's FORMAT_DOUBLE class.
The second example uses the AEL_PRINTF class from the freely available
Amalasoft Eiffel Library (AEL).
See additional comments in the code.
}"
class APPLICATION
inherit
AEL_PRINTF -- Optional, see below
create
make
feature {NONE} -- Initialization
make
-- Run application.
do
print_formatted_std (7.125)
print_formatted_ael (7.125)
end
--|--------------------------------------------------------------
print_formatted_std (v: REAL_64)
-- Print the value 'v' as a zero-padded string in a fixed
-- overall width of 9 places and, with a precision of
-- to 3 places to the right of the decimal point.
-- Use the FORMAT_DOUBLE class from the standard library
local
fmt: FORMAT_DOUBLE
do
create fmt.make (9, 3)
fmt.zero_fill
print (fmt.formatted (v) + "%N")
end
--|--------------------------------------------------------------
print_formatted_ael (v: REAL_64)
-- Print the value 'v' as a zero-padded string in a fixed
-- overall width of 9 places and, with a precision of
-- to 3 places to the right of the decimal point.
-- Use the AEL_PRINTF class from the Amalasoft Eiffel Library
-- freely available from www.amalasoft.com
do
-- printf accepts a format string and an argument list
-- The argument list is a container (often a manifest
-- array) of values corresponding to the type of the format
-- specified in the format string argument.
-- When only one argument is needed, then there is also the
-- option to use just the value, without the container.
-- In this example, the line would be:
-- printf ("%%09.3f%N", v)
-- The more deliberate form is used in the actual example,
-- as it is more representative of common usage, when there
-- are multiple value arguments.
printf ("%%09.3f%N", << v >>)
end
end
Elixir
n = 7.125
:io.fwrite "~f~n", [n]
:io.fwrite "~.3f~n", [n]
:io.fwrite "~9f~n", [n]
:io.fwrite "~9.3f~n", [n]
:io.fwrite "~9..0f~n", [n]
:io.fwrite "~9.3.0f~n", [n]
:io.fwrite "~9.3._f~n", [n]
:io.fwrite "~f~n", [-n]
:io.fwrite "~9.3f~n", [-n]
:io.fwrite "~9.3.0f~n", [-n]
:io.fwrite "~e~n", [n]
:io.fwrite "~12.4e~n", [n]
:io.fwrite "~12.4.0e~n", [n]
- Output:
7.125000 7.125 7.125000 7.125 07.125000 00007.125 ____7.125 -7.125000 -7.125 000-7.125 7.12500e+0 7.125e+0 00007.125e+0
Emacs Lisp
(format "%09.3f" 7.125) ;=> "00007.125"
format
is similar to C sprintf
. See GNU Elisp manual on Formatting Strings.
Erlang
Built in
- Output:
14> io:fwrite("~9.3.0f~n", [7.125]). 00007.125
ERRE
PROGRAM FORMATTED
PROCEDURE FORMATTED_PRINT(N,LENGTH,DEC_PLACES->FP$)
LOCAL I,C$,NN$
FORMAT$=STRING$(LENGTH,"#")+"."
FOR I=1 TO DEC_PLACES DO
FORMAT$=FORMAT$+"#"
END FOR
OPEN("O",1,"FORMAT.$$$")
WRITE(#1,FORMAT$;N)
CLOSE(1)
OPEN("I",1,"FORMAT.$$$")
INPUT(LINE,#1,N$)
CLOSE(1)
! add leading zeros
FOR I=1 TO LEN(N$) DO
C$=MID$(N$,I,1)
IF C$=" " OR C$="%" THEN NN$=NN$+"0" ELSE NN$=NN$+C$
END FOR
FP$=RIGHT$("000000000000"+NN$,LENGTH) ! chop to required length
END PROCEDURE
BEGIN
PRINT(CHR$(12);) ! CLS
FOR I=1 TO 10 DO
N=RND(1)*10^(INT(10*RND(1))-2)
FORMATTED_PRINT(N,16,5->FP$)
PRINT("Raw number =";N;TAB(30);"Using custom function =";FP$)
END FOR
END PROGRAM
- Output:
Raw number = 1213.501 Using custom function =0000001213.50100 Raw number = 86886.11 Using custom function =0000086886.11000 Raw number = 7.98853E-03 Using custom function =0000000000.00799 Raw number = 49.03128 Using custom function =0000000049.03128 Raw number = 1072496 Using custom function =0001072496.00000 Raw number = 703.8703 Using custom function =0000000703.87030 Raw number = 9.711614 Using custom function =0000000009.71161 Raw number = 9561278 Using custom function =0009561278.00000 Raw number = 534.9367 Using custom function =0000000534.93670 Raw number = 67121.88 Using custom function =0000067121.88000
Euphoria
constant r = 7.125
printf(1,"%9.3f\n",-r)
printf(1,"%9.3f\n",r)
printf(1,"%-9.3f\n",r)
printf(1,"%09.3f\n",-r)
printf(1,"%09.3f\n",r)
printf(1,"%-09.3f\n",r)
- Output:
-7.125 7.125 7.125 -0007.125 00007.125 7.125
F#
printfn "%09.3f" 7.125f
Factor
USE: formatting
7.125 "%09.3f\n" printf
- Output:
00007.125
Fantom
class Main
{
public static Void main()
{
echo (7.125.toStr.padl(9, '0'))
}
}
Forth
Forth has a rather rich set of number formatting words, which makes formatted output very flexible but sometime cumbersome.
Here one way to generate the required output. Note that the number generated is NOT truncated to the field width. If you wish to truncate the number, remove #s and 1- from the definition. (The 1- is necessary because #s always generates at least one digit, even if it's zero.)
\ format 'n' digits of the double word 'd'
: #n ( d n -- d ) 0 ?do # loop ;
\ ud.0 prints an unsigned double
: ud.0 ( d n -- ) <# 1- #n #s #> type ;
\ d.0 prints a signed double
: d.0 ( d n -- ) >r tuck dabs <# r> 1- #n #s rot sign #> type ;
Usage example:
Type: 123 s>d 8 ud.0
Result: 00000123 ok
Type: -123 s>d 8 d.0
Result: -00000123 ok
Detail
Forth's number formatting words are different than many other languages because they are active code rather than using a pattern string. This small set of seven routines ( >DIGIT <# #> # #S HOLD SIGN ) allow arbitrary number formatting of double precision and single precision numbers. The number is created in a "hold' buffer the output is typically a Forth style stack-string consisting of an address and a length.
Typical of Forth the using the formatting routines means putting things in reverse order. We are also free to create a mnemonic name that gives a reminder at how numbers will appear.
To replicate the example for this task we could write:
: '.' [CHAR] . HOLD ; \ HOLD inserts a character into the number string \ right side . left side : 0000#.### ( d -- addr len) DABS <# # # # '.' # # # # # #> ;
At the console we can input a double number, execute the format routine and type the resulting string.
7.125 0000#.### TYPE 000007.125 ok
Fortran
Using standard data edit descriptors it is only possible to precede Integer data with leading zeros.
INTEGER :: number = 7125
WRITE(*,"(I8.8)") number ! Prints 00007125
On the other hand
One can engage in trickery via FORMAT statements, in particular the T format option. Unlike actual tab settings which on a typewriter go to a particular column following, Tn means go to column n.
INTEGER IV
REAL V
DATA V/7.125/ !A positive number.
IV = V !Grab the integer part.
WRITE (6,1) V,IV
1 FORMAT (F9.3,T1,I5.5)
END
Output is
00007.125
This would need adjustment for other sizes, but works as follows: The value part is printed (in the format system's working area) as "bbbb7.125" (b's standing for spaces), then the T1 moves the finger back to column one, and the I5.5 writes out "00007", the .5 addendum to I5 meaning print leading zeroes rather than leading spaces. It does not overwrite the subsequent ".125", and as no further output items appear the deed is done. Only later Fortran offers the addendum feature, but the Tab feature is much older.
Another approach would be to write forth a literal "0000" instead of the integer, but this is less flexible. In the absence of the .5 addendum, write the output to a character string (or equivalent), replace leading spaces by zeroes (watching out for negative numbers), and print the result.
Free Pascal
See Pascal
Fōrmulæ
Fōrmulæ programs are not textual, visualization/edition of programs is done showing/manipulating structures but not text. Moreover, there can be multiple visual representations of the same program. Even though it is possible to have textual representation —i.e. XML, JSON— they are intended for storage and transfer purposes more than visualization and edition.
Programs in Fōrmulæ are created/edited online in its website.
In this page you can see and run the program(s) related to this task and their results. You can also change either the programs or the parameters they are called with, for experimentation, but remember that these programs were created with the main purpose of showing a clear solution of the task, and they generally lack any kind of validation.
Gambas
Click this link to run this code
Public Sub Main()
Print Format("7.125", "00000.000")
End
Output:
00007.125
gnuplot
print sprintf("%09.3f", 7.125)
Go
fmt.Printf("%09.3f", 7.125)
Groovy
Solution:
printf ("%09.3f", 7.125)
- Output:
00007.125
Haskell
import Text.Printf
main =
printf "%09.3f" 7.125
hexiscript
fun format n length
let n tostr n
while len n < length
let n 0 + n
endwhile
println n
endfun
format 7.125 9
HicEst
WRITE(ClipBoard, Format='i5.5, F4.3') INT(7.125), MOD(7.125, 1) ! 00007.125
i
concept FixedLengthFormat(value, length) {
string = text(abs(value))
prefix = ""
sign = ""
if value < 0
sign = "-"
end
if #string < length
prefix = "0"*(length-#sign-#string-#prefix)
end
return sign+prefix+string
}
software {
d = 7.125
print(FixedLengthFormat(d, 9))
print(FixedLengthFormat(-d, 9))
}
Icon and Unicon
- Output:
Abbreviated
3.141592653589793 <=== no printf |3.141593| <=== sprintf |%r| | 3.142| <=== sprintf |%9.3r| |3.142 | <=== sprintf |%-9.3r| |3.142| <=== sprintf |%0.3r| | 3.141593e0| <=== sprintf |%e| |3| <=== sprintf |%d|
provides printf
IDL
n = 7.125
print, n, format='(f08.3)'
;==> 0007.125
J
'r<0>9.3' (8!:2) 7.125
00007.125
Java
Stealing printf from C/C++:
public class Printing{
public static void main(String[] args){
double value = 7.125;
System.out.printf("%09.3f",value); // System.out.format works the same way
System.out.println(String.format("%09.3f",value));
}
}
- Output:
000000007.125 000000007.125
Using NumberFormat
:
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class Format {
public static void main(String[] args){
NumberFormat numForm = new DecimalFormat();
numForm.setMinimumIntegerDigits(9);
//Maximum also available for Integer digits and Fraction digits
numForm.setGroupingUsed(false);//stops it from inserting commas
System.out.println(numForm.format(7.125));
//example of Fraction digit options
numForm.setMinimumIntegerDigits(5);
numForm.setMinimumFractionDigits(5);
System.out.println(numForm.format(7.125));
numForm.setMinimumFractionDigits(0);
numForm.setMaximumFractionDigits(2);
System.out.println(numForm.format(7.125));
System.out.println(numForm.format(7.135));//rounds to even
}
}
- Output:
000000007.125 00007.12500 00007.12 00007.14
JavaScript
var n = 123;
var str = ("00000" + n).slice(-5);
alert(str);
or, put in browser URL: javascript:n=123;alert(("00000"+n).slice(-5));
Also, a 60-line implementation of sprintf
can be found here.
jq
The jq function pp0/1 as defined below is written in accordance with the task requirements, but no truncation occurs; pp/1 is similar but is likely to be more useful as the decimal point is aligned if possible.
def pp0(width):
tostring
| if width > length then (width - length) * "0" + . else . end;
# pp(left; right) formats a decimal number to occupy
# (left+right+1) positions if possible,
# where "left" is the number of characters to the left of
# the decimal point, and similarly for "right".
def pp(left; right):
def lpad: if (left > length) then ((left - length) * "0") + . else . end;
tostring as $s
| $s
| index(".") as $ix
| ((if $ix then $s[0:$ix] else $s end) | lpad) + "." +
(if $ix then $s[$ix+1:] | .[0:right] else "" end);
Examples:
(1.0, 12.3, 333.333, 1e6) | pp0(10)
produces
0000000001
00000012.3
000333.333
0001000000
(1.0, 12.3, 333.333, 1e6) | pp(4;2)
produces
0001.
0012.3
0333.33
1000000.
Julia
Julia's @sprintf macro provides string formatting that is similar to that of the c function of the same name. Though easy to use and efficient, @sprintf has limited flexibility, as its format specification must be a string literal, precluding its use in dynamic formatting. Greater flexibility is available via the Formatting package, which provides an implementation of Python's format specification mini-language. This solution demonstrates both of these techniques to provide the leading zero padded floating point format suggested in the task description ("%09.3f").
using Printf
test = [7.125, [rand()*10^rand(0:4) for i in 1:9]]
println("Formatting some numbers with the @sprintf macro (using \"%09.3f\"):")
for i in test
println(@sprintf " %09.3f" i)
end
using Formatting
println()
println("The same thing using the Formatting package:")
fe = FormatExpr(" {1:09.3f}")
for i in test
printfmtln(fe, i)
end
- Output:
Formatting some numbers with the @sprintf macro (using "%09.3f"): 00007.125 00001.734 00903.432 00000.980 00002.271 00559.864 00105.497 00069.955 00046.107 04970.430 The same thing using the Formatting package: 00007.125 00001.734 00903.432 00000.980 00002.271 00559.864 00105.497 00069.955 00046.107 04970.430
Kotlin
// version 1.0.5-2
fun main(args: Array<String>) {
val num = 7.125
println("%09.3f".format(num))
}
- Output:
00007.125
Lambdatalk
Lambdatalk has no primitive for numeric output. This is a way to define it:
{def fmt
{def padd {lambda {:n :x} {if {< :n 1} then else :x{padd {- :n 1} :x}}}}
{def trunc {lambda {:n} {if {> :n 0} then {floor :n} else {ceil :n}}}}
{lambda {:a :b :n}
{let { {:a :a} {:b :b} {:n {abs :n}} {:sign {if {>= :n 0} then + else -}}
{:int {trunc :n}}
{:dec {ceil {* 1.0e:b {abs {- :n {trunc :n}}}}} }
} {br}{padd {- :a {W.length {trunc :n}}} >}
{if {W.equal? :sign -} then else :sign}:int.:dec{padd {- :b {W.length :dec}} 0} }}}
-> fmt
{def numbers
7.125
10.7
0.980
-1000
559.8
-69.99
4970.430}
-> numbers
{S.map {fmt 10 3} {numbers}}
->
>>>>>>>>> +7.125
>>>>>>>> +10.699
>>>>>>>>> +0.980
>>>>>> -1000.000
>>>>>>> +559.799
>>>>>>>> -69.990
>>>>>> +4970.430
Lasso
7.125 -> asstring(-precision = 3, -padding = 9, -padchar = '0')
- Output:
00007.125
Logo
Various collection functions, such as MAP and FILTER, will work on individual characters of a string when given a word instead of a list.
to zpad :num :width :precision
output map [ifelse ? = "| | ["0] [?]] form :num :width :precision
end
print zpad 7.125 9 3 ; 00007.125
As a debugging feature, you can drop down to C language printf formatting by giving -1 for the width and a format string for the precision.
print form 7.125 -1 "|%09.3f| ; 00007.125
Lua
function digits(n) return math.floor(math.log(n) / math.log(10))+1 end
function fixedprint(num, digs) --digs = number of digits before decimal point
for i = 1, digs - digits(num) do
io.write"0"
end
print(num)
end
fixedprint(7.125, 5) --> 00007.125
An easier way to do that would be
print(string.format("%09.3d",7.125))
M2000 Interpreter
We can use ? as Print
Print str$(7.125,"00000.000")
Maple
printf("%f", Pi);
3.141593
printf("%.0f", Pi);
3
printf("%.2f", Pi);
3.14
printf("%08.2f", Pi);
00003.14
printf("%8.2f", Pi);
3.14
printf("%-8.2f|", Pi);
3.14 |
printf("%+08.2f", Pi);
+0003.14
printf("%+0*.*f",8, 2, Pi);
+0003.14
Mathematica / Wolfram Language
StringTake["000000" <> ToString[7.125], -9]
00007.125
MATLAB / Octave
>> disp(sprintf('%09.3f',7.125))
00007.125
Maxima
printf(false,"~9,3,,,'0F",7.125);
- Output:
"00007.125"
Mercury
:- module formatted_numeric_output.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module list, string.
main(!IO) :-
io.format("%09.3f\n", [f(7.125)], !IO).
min
(pick length - repeat prefix) ^left-pad
7.125 string "0" 9 left-pad puts!
- Output:
00007.125
Modula-3
Modules IO and Fmt must be imported before use.
IO.Put(Fmt.Pad("7.125\n", length := 10, padChar := '0'));
Nanoquery
printer = 7.125
println format("%09.3f", printer)
- Output:
00007.125
NetRexx
/* NetRexx */
options replace format comments java crossref savelog symbols binary
import java.text.MessageFormat
sevenPointOneTwoFive = double 7.125
-- using NetRexx Built-In Functions (BIFs)
say Rexx(sevenPointOneTwoFive).format(5, 3).changestr(' ', '0')
-- using Java library constructs
System.out.printf('%09.3f\n', [Double(sevenPointOneTwoFive)])
say MessageFormat.format('{0,number,#00000.###}', [Double(sevenPointOneTwoFive)])
return
- Output:
00007.125 00007.125 00007.125
Nim
import strformat
const r = 7.125
echo r
echo fmt"{-r:9.3f}"
echo fmt"{r:9.3f}"
echo fmt"{-r:09.3f}"
echo fmt"{r:09.3f}"
- Output:
7.125 -7.125 7.125 -0007.125 00007.125
Oberon-2
Module Out
must be imported before use.
Out.Real(7.125, 9, 0);
Objective-C
NSLog(@"%09.3f", 7.125);
or
NSLog(@"%@", [NSString stringWithFormat:@"%09.3f", 7.125]);
OCaml
Printf.printf "%09.3f\n" 7.125
OpenEdge/Progress
MESSAGE
STRING( 7.125, "99999.999" )
VIEW-AS ALERT-BOX.
Oz
It is possible to set the precision used for float printing (where "precision" means the total number of digits used).
It doesn't seem to be possible to use leading zeros for printing, so we implement this manually:
declare
fun {PrintFloat X Prec}
{Property.put 'print.floatPrecision' Prec}
S = {Float.toString X}
in
{Append
for I in 1..Prec-{Length S}+1 collect:C do {C &0} end
S}
end
in
{System.showInfo {PrintFloat 7.125 8}}
PARI/GP
printf("%09.4f\n", Pi)
Pascal
procedure writeInFixedFormat(n: real);
const
wholeNumberPlaces = 5;
fractionalPlaces = 3;
zeroDigit = '0';
negative = '-';
var
signPresent: boolean;
i: integer;
begin
// NOTE: This does not catch “negative” zero.
signPresent := n < 0.0;
if signPresent then
begin
write(negative);
n := abs(n);
end;
// determine number of leading zeros
i := wholeNumberPlaces;
if n > 0 then
begin
i := i - trunc(ln(n) / ln(10));
end;
for i := i - 1 downto succ(ord(signPresent)) do
begin
write(zeroDigit);
end;
// writes n with
// - at least 0 characters in total
// - exactly fractionalPlaces post-radix digits
// rounded
write(n:0:fractionalPlaces);
end;
PascalABC.NET
##
var Pi := 3.1415926536;
Println($'{Pi,8:f2}');
Println($'{Pi,-8:f3}!');
- Output:
3.14 3.142 !
Perl
printf "%09.3f\n", 7.125;
Phix
printf(1,"%09.3f\n",7.125)
- Output:
00007.125
PHP
echo str_pad(7.125, 9, '0', STR_PAD_LEFT);
or
printf("%09.3f\n", 7.125);
PicoLisp
(pad 9 (format 7125 3))
(pad 9 (format 7125 3 ",")) # European format
PL/I
put edit (X) (p'999999.V999'); /* Western format. */
put edit (X) (p'999999,V999'); /* In European format. */
lz: Proc Options(main);
/*********************************************************************
* 10.09.2013 Walter Pachl one way to treat negative numbers
* another would be using a Picture of 'S(9)9.V(3)9' or '-(9)9.V(3)9'
*********************************************************************/
Call z2lz(1.2);
Call z2lz(-1.32);
Call z2lz(123456789.012);
Call z2lz(-23456789.012);
Call z2lz(-123456789.012);
z2lz: Proc(z);
Dcl z Dec Fixed(15,3); ;
Dcl s Char(13) Based(addr(p));
Dcl p Pic'(9)9.V(3)9';
p=z;
If z<0 Then
If left(s,1)='0' Then substr(s,1,1)='-';
Else Do;
Put Skip List(z,'can''t be formatted that way');
Return;
End;
Put Skip List(z,s);
End;
End;
- Output:
1.200 000000001.200 -1.320 -00000001.320 123456789.012 123456789.012 -23456789.012 -23456789.012 -123456789.012 can't be formatted that way
Pop11
The task is underspecified, so we present a few alternatives.
;;; field of length 12, 3 digits after decimal place
format_print('~12,3,0,`*,`0F', [1299.19]);
;;; prints "00001299.190"
format_print('~12,3,0,`*,`0F', [100000000000000000]);
;;; Since the number does not fit into the field prints "************"
;;; that is stars instead of the number
format_print('~12,3,0,`*,`0F', [-1299.19]);
;;; prints "000-1299.190"
;;; that is _leading zeros_ before sign
format_print('~3,1,12,`0:$', [1299.19]);
;;; prints "00001299.190"
format_print('~3,1,12,`0:$', [-1299.19]);
;;; prints "-0001299.190"
;;; that is sign before leading zeros
format_print('~3,1,12,`0:$', [100000000000000000]);
;;; prints "100000000000000000.000"
;;; that is uses more space if the number does not fit into
;;; fixed width
PowerShell
Using the -f
formatting operator and a custom format string:
'{0:00000.000}' -f 7.125
or by invoking ToString
on the number:
7.125.ToString('00000.000')
Python
Python has 3 different floating point formatting methods: "%e","%f" & "%g". The "%g" format is a beautified hybrid of "%e" and "%f". There is no way of specifying how many digits appear in the exponent when printed with a format.
from math import pi, exp
r = exp(pi)-pi
print r
print "e=%e f=%f g=%g G=%G s=%s r=%r!"%(r,r,r,r,r,r)
print "e=%9.4e f=%9.4f g=%9.4g!"%(-r,-r,-r)
print "e=%9.4e f=%9.4f g=%9.4g!"%(r,r,r)
print "e=%-9.4e f=%-9.4f g=%-9.4g!"%(r,r,r)
print "e=%09.4e f=%09.4f g=%09.4g!"%(-r,-r,-r)
print "e=%09.4e f=%09.4f g=%09.4g!"%(r,r,r)
print "e=%-09.4e f=%-09.4f g=%-09.4g!"%(r,r,r)
- Output:
19.9990999792 e=1.999910e+01 f=19.999100 g=19.9991 G=19.9991 s=19.9990999792 r=19.999099979189474! e=-1.9999e+01 f= -19.9991 g= -20! e=1.9999e+01 f= 19.9991 g= 20! e=1.9999e+01 f=19.9991 g=20 ! e=-1.9999e+01 f=-019.9991 g=-00000020! e=1.9999e+01 f=0019.9991 g=000000020! e=1.9999e+01 f=19.9991 g=20 !
from math import pi, exp
r = exp(pi)-pi
print(r)
print("e={0:e} f={0:f} g={0:g} G={0:G} s={0!s} r={0!r}!".format(r))
print("e={0:9.4e} f={0:9.4f} g={0:9.4g}!".format(-r))
print("e={0:9.4e} f={0:9.4f} g={0:9.4g}!".format(r))
print("e={0:-9.4e} f={0:-9.4f} g={0:-9.4g}!".format(r))
print("e={0:09.4e} f={0:09.4f} g={0:09.4g}!".format(-r))
print("e={0:09.4e} f={0:09.4f} g={0:09.4g}!".format(r))
print("e={0:-09.4e} f={0:-09.4f} g={0:-09.4g}!".format(r))
- Output:
19.9990999792 e=1.999910e+01 f=19.999100 g=19.9991 G=19.9991 s=19.9990999792 r=19.999099979189474! e=-1.9999e+01 f= -19.9991 g= -20! e=1.9999e+01 f= 19.9991 g= 20! e=1.9999e+01 f=19.9991 g=20 ! e=-1.9999e+01 f=-019.9991 g=-00000020! e=1.9999e+01 f=0019.9991 g=000000020! e=1.9999e+01 f=19.9991 g=20 !
Quackery
Behaviour of format ( $ a b --> $ )
Accepts a well formatted numerical string $
, optionally with a decimal point, without validation.
a
is the number of digits before the decimal point. b
is the number of digits after the decimal point.
Returns a string $
with either a leading zero or a leading space, then at least a
digits, then a decimal point, then at least b
digits. The digits are padded with zeroes fore and aft if required.
"at least" – if there are already more digits before the point than a
, and/or more digits after the point than b
, it will not crop the number. IMO, it is better to mess up the formatting than to display an incorrect number. Check the $ is not too long fore or aft before passing to format
if the string may be truncated.
[ over find swap found ] is has ( $ c --> b )
[ over 0 peek
char - = iff
[ dip [ behead drop ]
true unrot ]
else [ false unrot ]
over char . swap find
- char 0 swap of
swap join
swap iff char -
else space
swap join ] is left-pad ( $ n --> $ )
[ over char . has not if
[ dip [ char . join ] ]
over char . swap find
dip [ over size ]
1+ - -
char 0 swap of
join ] is right-pad ( $ n --> $ )
[ dip left-pad right-pad ] is format ( $ n n --> $ )
' [ $ "7.125"
$ "-7.125"
$ "0.125"
$ "-0.12"
$ "7.12"
$ "-7.12"
$ "0.12"
$ "-0.12"
$ "7"
$ "-7"
$ "0" ]
witheach
[ do 5 3 format echo$ cr ]
- Output:
00007.125 -00007.125 00000.125 -00000.120 00007.120 -00007.120 00000.120 -00000.120 00007.000 -00007.000 00000.000
R
sprintf brings the printf goodness one expects:
> sprintf("%f", pi)
[1] "3.141593"
> sprintf("%.3f", pi)
[1] "3.142"
> sprintf("%1.0f", pi)
[1] "3"
> sprintf("%5.1f", pi)
[1] " 3.1"
> sprintf("%05.1f", pi)
[1] "003.1"
> sprintf("%+f", pi)
[1] "+3.141593"
> sprintf("% f", pi)
[1] " 3.141593"
> sprintf("%-10f", pi)# left justified
[1] "3.141593 "
> sprintf("%e", pi)
[1] "3.141593e+00"
> sprintf("%E", pi)
[1] "3.141593E+00"
> sprintf("%g", pi)
[1] "3.14159"
> sprintf("%g", 1e6 * pi) # -> exponential
[1] "3.14159e+06"
> sprintf("%.9g", 1e6 * pi) # -> "fixed"
[1] "3141592.65"
> sprintf("%G", 1e-6 * pi)
[1] "3.14159E-06"
formatC also provides C-style string formatting.
formatC(x, width=9, flag="0")
# "00007.125"
Other string formatting functions include
format, prettynum
Racket
-> (displayln (~a 7.125 #:width 9 #:align 'right #:pad-string "0"))
00007.125
Raku
(formerly Perl 6)
say 7.125.fmt('%09.3f');
Raven
7.125 "%09.3f" print
00007.125
define PI
-1 acos
PI exp PI - as r
r print "\n" print
r "" prefer "s=%s!\n" print
r dup dup dup dup "e=%e f=%f g=%g G=%G!\n" print
-1 r * dup dup "e=%9.4e f=%9.4f g=%9.4g!\n" print
r dup dup "e=%9.4e f=%9.4f g=%9.4g!\n" print
r dup dup "e=%-9.4e f=%-9.4f g=%-9.4g!\n" print
r -1 * dup dup "e=%09.4e f=%09.4f g=%09.4g!\n" print
r dup dup "e=%09.4e f=%09.4f g=%09.4g!\n" print
r dup dup "e=%-09.4e f=%-09.4f g=%-09.4g!\n" print
19.9991
s=19.999100!
e=1.999910e+01 f=19.999100 g=19.9991 G=19.9991!
e=-1.9999e+01 f= -19.9991 g= -20!
e=1.9999e+01 f= 19.9991 g= 20!
e=1.9999e+01 f=19.9991 g=20 !
e=-1.9999e+01 f=-019.9991 g=-00000020!
e=1.9999e+01 f=0019.9991 g=000000020!
e=1.9999e+01 f=19.9991 g=20 !
REBOL
REBOL [
Title: "Formatted Numeric Output"
URL: http://rosettacode.org/wiki/Formatted_Numeric_Output
]
; REBOL has no built-in facilities for printing pictured output.
; However, it's not too hard to cook something up using the
; string manipulation facilities.
zeropad: func [
"Pad number with zeros or spaces. Works on entire number."
pad "Number of characters to pad to."
n "Number to pad."
/space "Pad with spaces instead."
/local nn c s
][
n: to-string n c: " " s: ""
if not space [
c: "0"
if #"-" = n/1 [pad: pad - 1 n: copy skip n 1 s: "-"]
]
insert/dup n c (pad - length? n)
insert n s
n
]
; These tests replicate the C example output.
print [zeropad/space 9 negate 7.125]
print [zeropad/space 9 7.125]
print 7.125
print [zeropad 9 negate 7.125]
print [zeropad 9 7.125]
print 7.125
- Output:
-7.125 7.125 7.125 -0007.125 00007.125 7.125
REXX
/*REXX program shows various ways to add leading zeroes to numbers. */
a=7.125
b=translate(format(a,10),0,' ')
say 'a=' a
say 'b=' b
say
c=8.37
d=right(c,20,0)
say 'c=' c
say 'd=' d
say
e=19.46
f='000000'e
say 'e=' e
say 'f=' f
say
g=18.25e+1
h=000000||g
say 'g=' g
say 'h=' h
say
i=45.2
j=translate(' 'i,0," ")
say 'i=' i
say 'j=' j
say
k=36.007
l=insert(00000000,k,0)
say 'k=' k
say 'l=' l
say
m=.10055
n=copies(0,20)m
say 'm=' m
say 'n=' n
say
p=4.060
q=0000000000000||p
say 'p=' p
say 'q=' q
say
r=876
s=substr(r+10000000,2)
say 'r=' r
say 's=' s
say
t=13.02
u=reverse(reverse(t)000000000)
say 't=' t
say 'u=' u
/*stick a fork in it, we're done.*/
- Output:
a= 7.125 b= 0000000007.125 c= 8.37 d= 00000000000000008.37 e= 19.46 f= 00000019.46 g= 18.25E+1 h= 00000018.25E+1 i= 45.2 j= 00000045.2 k= 36.007 l= 0000000036.007 m= .10055 n= 00000000000000000000.10055 p= 4.060 q= 00000000000004.060 r= 876 s= 0000876 t= 13.02 u= 00000000013.02
Ring
decimals(3)
see fixedprint(7.125, 5) + nl
func fixedprint num, digs
for i = 1 to digs - len(string(floor(num)))
see "0"
next
see num + nl
RPL
Number formatting in RPL is at 1980s standards (ANSI BASIC X3J2, 1983 to be precise). If the user wants something else, she/he has to write some code, formatting the number as a string.
≪ 1 CF IF OVER 0 < THEN 1 SF 1 - END SWAP ABS →STR WHILE DUP2 SIZE > REPEAT "0" SWAP + END IF 1 FS? THEN "-" SWAP + END SWAP DROP ≫ 'TASK' STO
- Input:
7.125 9 TASK -7.125 9 TASK
- Output:
2: "00007.125" 1: "-0007.125"
Ruby
r = 7.125
printf " %9.3f\n", r #=> 7.125
printf " %09.3f\n", r #=> 00007.125
printf " %09.3f\n", -r #=> -0007.125
printf " %+09.3f\n", r #=> +0007.125
puts " %9.3f" % r #=> 7.125
puts " %09.3f" % r #=> 00007.125
puts " %09.3f" % -r #=> -0007.125
puts " %+09.3f" % r #=> +0007.125
Rust
fn main() {
let x = 7.125;
println!("{:9}", x);
println!("{:09}", x);
println!("{:9}", -x);
println!("{:09}", -x);
}
- Output:
7.125 00007.125 -7.125 -0007.125
Sather
The Fill options should fill with any character, but it is still (!) not implemented; according to ICSI Sather library documentation (GNU Sather library documentation is missing) works only for string, bools and characters, but a test has revealed it does not work in either way (yet) (GNU Sather v1.2.3).
class MAIN is
main is
#OUT + #FMT("<F0 #####.###>", 7.1257) + "\n";
#OUT + #FMT("<F0 #####.###>", 7.1254) + "\n";
end;
end;
Luckly the C-like formats are supported too:
#OUT + #FMT("%09.3f", 7.125) + "\n";
Scala
As shown in a Scala Worksheet:
object FormattedNumeric {
val r = 7.125 //> r : Double = 7.125
println(f" ${-r}%9.3f"); //> -7,125
println(f" $r%9.3f"); //> 7,125
println(f" $r%-9.3f"); //> 7,125
println(f" ${-r}%09.3f"); //> -0007,125
println(f" $r%09.3f"); //> 00007,125
println(f" $r%-9.3f"); //> 7,125
println(f" $r%+09.3f"); //> +0007,125
}
Scheme
Obtain the implementation of SRFI 54 from http://srfi.schemers.org/srfi-54/srfi-54.html and save it as "srfi-54.scm" in directory Gauche/share/gauche/site/lib/
(load "srfi-54.scm")
(load "srfi-54.scm") ;; Don't ask.
(define x 295643087.65432)
(dotimes (i 4)
(print (cat x 25 3.0 #\0 (list #\, (- 4 i)))))
- Output:
00000000002,9564,3087.654 0000000000295,643,087.654 00000002,95,64,30,87.65,4 002,9,5,6,4,3,0,8,7.6,5,4
Seed7
$ include "seed7_05.s7i";
include "float.s7i";
const proc: main is func
local
const float: r is 7.125;
begin
writeln( r digits 3 lpad 9);
writeln(-r digits 3 lpad 9);
writeln( r digits 3 lpad0 9);
writeln(-r digits 3 lpad0 9);
writeln( r digits 3);
writeln(-r digits 3);
end func;
- Output:
7.125 -7.125 00007.125 -0007.125 7.125 -7.125
Sidef
printf("%09.3f\n", 7.125);
or
say ("%09.3f" % 7.125);
- Output:
00007.125
Smalltalk
Transcript show: (7.125 printPaddedWith: $0 to: 3.6); cr.
"output: 007.125000"
(7.123 asFixedPoint:3) printOn: Transcript leftPaddedTo: 9 with: $0
"output: 00007.125"
notice that printOn:* is implemented in Object;thus any object can be printed with padding this way.
Using the PrintfScanf utility:
PrintfScanf new printf:'%08.3f' arguments: { 7.125 }
SQL
declare @n int
select @n=123
select substring(convert(char(5), 10000+@n),2,4) as FourDigits
set @n=5
print "TwoDigits: " + substring(convert(char(3), 100+@n),2,2)
--Output: 05
Standard ML
print (StringCvt.padLeft #"0" 9 (Real.fmt (StringCvt.FIX (SOME 3)) 7.125) ^ "\n")
print (Format.format "%09.3f\n" [Format.REAL 7.125])
Stata
See format in Stata help.
. display %010.3f (57/8)
000007.125
Suneido
Print(7.125.Pad(9))
- Output:
00007.125
Tcl
set number 7.342
format "%08.3f" $number
Use with puts if output is desired to go to a channel.
Toka
needs values
value n
123 to n
2 import printf
" %08d" n printf
Ursala
The library function printf calls the host system's C library function by that name and can cope with any of the same numeric formats.
#import flo
x = 7.125
#show+
t = <printf/'%09.3f' x>
- Output:
00007.125
Vala
void main() {
double r = 7.125;
print(" %9.3f\n", -r);
print(" %9.3f\n",r);
print(" %-9.3f\n",r);
print(" %09.3f\n",-r);
print(" %09.3f\n",r);
print(" %-09.3f\n",r);
}
- Output:
-7.125 7.125 7.125 -0007.125 00007.125 7.125
Vedit macro language
Vedit only supports integers, but fixed point calculations can be used for decimal values.
The following example uses 3 decimal places (value scaled by 1000).
The output is inserted at current edit position.
#1 = 7125
Num_Ins(#1, FILL+COUNT, 9) Char(-3) Ins_Char('.')
- Output:
00007.125
V (Vlang)
fn main() {
// refer to string interpolation and format place holding in documentation
// pad with zeros towards the left
num := 7.125
println("${num:09f}")
}
- Output:
00007.125
Wren
import "./fmt" for Fmt
var n = 7.125
System.print(Fmt.rjust(9, n, "0"))
- Output:
00007.125
XPL0
int C;
[Format(5, 3); \5 places before decimal point and 3 after
RlOut(8, 7.125); \output real number to internal buffer
loop [C:= ChIn(8); \read character from internal buffer
if C = ^ then C:= ^0; \change leading space characters to zeros
if C = $1A then quit; \exit loop on end-of-file (EOF = end of chars)
ChOut(0, C); \display digit character on terminal
];
]
- Output:
00007.125
XSLT
<xsl:value-of select="format-number(7.125, '00000000.#############')" />
zkl
"%09.3f".fmt(7.125) //-->"00007.125"
"%09.3e".fmt(7.125) //-->"7.125e+00"
"%09.3g".fmt(7.125) //-->"000007.12"
"%09d".fmt(7.125) //-->"000000007"
"%09,d".fmt(78901.125)//-->"00078,901"
- Programming Tasks
- Basic language learning
- Text processing
- Simple
- 11l
- 8086 Assembly
- 8th
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- Ada
- Aime
- ALGOL 68
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