= 4.0.4, PHP 5, PHP 7, PHP 8)gmp_sqrtrem — Square root with remainder說明gmp_sqrtrem(GMP|int|string $num): arrayCalculate the square ">

gmp_sqrtrem

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

gmp_sqrtrem — Square root with remainder

說明

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

Calculate the square root of a number, with remainder.

參數(shù)

num

The number being square rooted.

GMP 對(duì)象或 int ，或數(shù)字string。

返回值

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).

范例

示例 #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";
?>

以上例程會(huì)輸出：

3, 0
2, 3
1024, 0