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gmp_jacobi

Description

The gmp_jacobi of GMP for PHP jacobi symbol.

Syntax

gmp_jacobi(
    GMP|int|string $num1,
    GMP|int|string $num2
): int

Parameters

num1

A GMP object, an int or a numeric string.

num2

A GMP object, an int or a numeric string.

Should be odd and must be positive.

Return

Returns the Jacobi symbol of num1 and num2.

Examples

1 · num1 num2 · GMP

<?

$num1 = 2;
$num2 = 3;

$num1 = gmp_init($num1);
$num2 = gmp_init($num2);

$return = gmp_jacobi($num1, $num2);

echo $return;

?>
-1

2 · num1 num2 · int

<?

$num1 = 2;
$num2 = 3;

$return = gmp_jacobi($num1, $num2);

echo $return;

?>
-1

3 · num1 num2 · string

<?

$num1 = "2";
$num2 = "3";

$return = gmp_jacobi($num1, $num2);

echo $return;

?>
-1
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