Isqrt (integer square root) of X: Difference between revisions
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Quadratic residue algorithm follows: |
Quadratic residue algorithm follows: |
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<lang perl6>use Lingua::EN::Numbers; |
<lang perl6>use Lingua::EN::Numbers; |
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sub isqrt ( \x ) { my ( $X, $q, $r, $t ) = x, 1, 0 ; |
sub isqrt ( \x ) { my ( $X, $q, $r, $t ) = x, 1, 0 ; |
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$q +<= 2 while $q ≤ $X ; |
$q +<= 2 while $q ≤ $X ; |
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