osf1 man page for sqrt

sqrt(3) 						     Library Functions Manual							   sqrt(3)

NAME
       sqrt, cbrt - Square and cube root functions

LIBRARY
       Math Library (libm.a)

SYNOPSIS
       #include <math.h>

       double  sqrt    (double	x);  float  sqrtf  (float  x); long double sqrtl   (long double x); double cbrt   (double y); float  cbrtf  (float
       y); long double cbrtl   (long double y);

DESCRIPTION
       sqrt(), sqrtf(), and sqrtl() compute the rounded square root of x.  For platforms supporting a signed zero, sqrt (-0) = 0.

       cbrt(), cbrtf(), and cbrtl() return the rounded cube root of y.

       -----------------------------------------------------------------------
       Function 		  Exceptional Argument	 Routine Behavior
       -----------------------------------------------------------------------
       sqrt(), sqrtf(), sqrtl()   x < 0 		 invalid argument
       -----------------------------------------------------------------------
       delim off

																	   sqrt(3)