PHP Australia Conference 2015

gmp_root

(PHP 5 >= 5.6.0)

gmp_rootTake the integer part of nth root

Description

GMP gmp_root ( GMP $a , int $nth )

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.

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