# gmp_root

(PHP 5 >= 5.6.0, PHP 7)

gmp_root — Take the integer part of nth root

### Description

gmp_root ( GMP `$a` , int `$nth` ) : GMP

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

### Parameters

`a`

  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.

`nth`

  The positive root to take of `a`.

### Return Values

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