Isqrt (integer square root) of X: Difference between revisions
Isqrt (integer square root) of X in yABASIC
(Isqrt (integer square root) of X in BASIC256) |
(Isqrt (integer square root) of X in yABASIC) |
||
Line 6,504:
73 49,221,735,352,184,872,959,961,855,190,338,177,606,846,542,622,561,400,857,262,407 7,015,820,362,023,593,956,150,476,655,802
</pre>
=={{header|Yabasic}}==
<lang freebasic>// Rosetta Code problem: https://rosettacode.org/wiki/Isqrt_(integer_square_root)_of_X
// by Jjuanhdez, 06/2022
print "Integer square root of first 65 numbers:"
for n = 1 to 65
print isqrt(n) using("##");
next n
print : print
print "Integer square root of odd powers of 7"
print " n | 7^n | isqrt "
print "----|--------------------|-----------"
for n = 1 to 21 step 2
pow7 = 7 ^ n
print n using("###"), " | ", left$(str$(pow7,"%20.1f"),18), " | ", left$(str$(isqrt(pow7),"%11.1f"),9)
next n
end
sub isqrt(x)
q = 1
while q <= x
q = q * 4
wend
r = 0
while q > 1
q = q / 4
t = x - r - q
r = r / 2
if t >= 0 then
x = t
r = r + q
end if
wend
return int(r)
end sub</lang>
| |||