gmp_sqrtrem

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_sqrtremSquare root with remainder

Description

gmp_sqrtrem(GMP|int|string $num): array

Calculate the square root of a number, with remainder.

Parameters

num

The number being square rooted.

A GMP object, an int or a numeric string.

Return Values

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

Examples

Example #1 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

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