gmp_sqrtrem

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

gmp_sqrtrem — Square root with remainder

说明

gmp_sqrtrem ( GMP $a ) : array

Calculate the square root of a number, with remainder.

参数

a

The number being square rooted.

可以是一个 GMP 数据 resouce，或一个可以转换为数值的字符串。

返回值

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).

范例

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";
?>

以上例程会输出：

3, 0
2, 3
1024, 0

php gmp 函数 compare numbers php gmp 函数 calculates one s complement php gmp 函数 divide numbers php gmp 函数 divide numbers and get quotient and remainder php gmp 函数 remainder of the division of numbers php gmp 函数 jacobi symbol php gmp 函数 kronecker symbol php gmp 函数 perfect square check php gmp 函数 random number php gmp 函数 sets the rng seed php gmp 函数 take the integer part of nth root php gmp 函数 take the integer part and remainder of nth root php gmp 函数 calculate square root php gmp 函数 square root with remainder php gupnp 函数 get the relative location of root device php gupnp 函数 create a new root device php statistic 函数 generates a random deviate from the chi square distribution php trader 函数 vector square root php com 函数 divides two variants and returns only the remainder php sdo das relational 函数 returns the special root object in an otherwise empty data graph. used when creating a data graph from scratch