Php/docs/function.gmp-sqrtrem

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gmp_sqrtrem

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

gmp_sqrtremSquare root with remainder


Description

gmp_sqrtrem ( GMP $a ) : array

Calculate the square root of a number, with remainder.


Parameters

a

The number being square rooted.

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.


Return Values

Returns array where first element is the integer square root of a and the second is the remainder (i.e., the difference between a and the first element squared).


Examples

Example #1 gmp_sqrtrem() example

<?phplist($sqrt1, $sqrt1rem) = gmp_sqrtrem("9");list($sqrt2, $sqrt2rem) = gmp_sqrtrem("7");list($sqrt3, $sqrt3rem) = gmp_sqrtrem("1048576");echo gmp_strval($sqrt1) . ", " . gmp_strval($sqrt1rem) . "\n";echo gmp_strval($sqrt2) . ", " . gmp_strval($sqrt2rem) . "\n";echo gmp_strval($sqrt3) . ", " . gmp_strval($sqrt3rem) . "\n";?>

The above example will output:


3, 0
2, 3
1024, 0