Fibonacci sequence: Difference between revisions

Content added Content deleted
(→‎{{header|Commodore BASIC}}: Add support for negative indexes and showing a range instead of just single item.)
Line 1,429:
 
==={{header|Commodore BASIC}}===
<lang basic>100 PRINT CHR$(147); CHR$(18); "**** FIBONACCI GENERATOR ****"
<lang basic>10 INPUT "ENTER VALUE OF N"; N
20110 N1INPUT ="MIN, 0MAX"; :N1, N2 = 1
120 IF N1 > N2 THEN T=N1: N1=N2: N2=T
30 FOR K=1 TO N
40130 A=0: SUM B=1: S=SGN(N1+N2)
50140 FOR I = S TO N1 =STEP N2S
150 : IF S > 0 THEN T=A+B: A=B: B=T
60 N2 = SUM
160 : IF S < 0 THEN T=B-A: B=A: A=T
70170 NEXT KI
80 PRINT N1</lang>
180 PRINT
190 PRINT STR$(A); : REM STR$() PREVENTS TRAILING SPACE
200 IF N2 = N1 THEN 250
30210 FOR KI=N1+1 TO NN2
220 : T=A+B: A=B: B=T
230 : PRINT ","STR$(A);
240 NEXT I
80250 PRINT N1</lang>
 
{{Out}}
<pre>**** FIBONACCI GENERATOR ****
 
MIN, MAX? -6,6
 
-8, 5,-3, 2,-1, 1, 0, 1, 1, 2, 3, 5, 8
 
READY.</pre>
 
==={{header|Integer BASIC}}===