DragonFly On-Line Manual Pages

SQRT(3) 	      DragonFly Library Functions Manual	       SQRT(3)

NAME

cbrt, cbrtf, cbrtl, sqrt, sqrtf, sqrtl -- cube root and square root func- tions

SYNOPSIS

#include <math.h> double cbrt(double x); float cbrtf(float x); long double cbrtl(long double x); double sqrt(double x); float sqrtf(float x); long double sqrtl(long double x);

DESCRIPTION

The cbrt() function computes the cube root of x. The cbrtf() function is a single precision version of cbrt(). The cbrtl() function is an extended precision version of cbrt(). The sqrt() function computes the non-negative square root of x. The sqrtf() function is a single precision version of sqrt(). The sqrtl() function is an extended precision version of sqrt().

RETURN VALUES

If x is negative, sqrt(x), sqrtf(x) and sqrtl(x) set the global variable errno to EDOM.

HISTORY

A sqrt() function first appeared in Version 3 AT&T UNIX. The cbrt() function appeared in 4.3BSD. DragonFly 4.3 July 17, 2013 DragonFly 4.3