gmp_sqrtrem

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

Square root with remainder

array gmp_sqrtrem ( GMP $a )

Calculate the square root of a number, with remainder.

Parameters:

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.

Returns:

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:

gmp_sqrtrem() example

<?php
list($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

Links:

http://php.net/manual/en/function.gmp-sqrtrem.php

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2025-01-10 15:47:30

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