php man page for gmp_root

GMP_ROOT(3)								 1							       GMP_ROOT(3)

gmp_root - Take the integer part of nth root

SYNOPSIS
       GMP gmp_root (GMP  $a, int  $nth)

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

PARAMETERS
	      o $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.

	      o $nth
		- The positive root to take of $a.

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

PHP Documentation Group 													       GMP_ROOT(3)