gmp_root

(PHP 5 >= 5.6.0, PHP 7)

gmp_root — Take the integer part of nth root

说明

GMP gmp_root ( GMP $a , int $nth )

Takes the nth root of a and returns the integer component of the result.

参数

a

可以是一个 GMP 数据 resouce，或一个可以转换为数值的字符串。

nth

The positive root to take of a.

返回值

The integer component of the resultant root, as a GMP number.