gmp_jacobi
gmp_jacobi
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_jacobi — Jacobi symbol
Description
int gmp_jacobi ( GMP $a , GMP $p )
Computes » Jacobi symbol of a
and p
. p
should be odd and must be positive.
Parameters
-
a
-
Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
-
p
-
Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
Should be odd and must be positive.
Examples
Example #1 gmp_jacobi() example
<?php echo gmp_jacobi("1", "3") . "\n"; echo gmp_jacobi("2", "3") . "\n"; ?>
The above example will output:
1 0
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https://secure.php.net/manual/en/function.gmp-jacobi.php