netbsd man page for sqrt

SQRT(3) 						   BSD Library Functions Manual 						   SQRT(3)

NAME
     cbrt, cbrtf, sqrt, sqrtf -- cube root and square root functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     cbrt(double x);

     float
     cbrtf(float x);

     double
     sqrt(double x);

     float
     sqrtf(float x);

DESCRIPTION
     The cbrt() and cbrtf() functions compute the cube root of x.

     The sqrt() and sqrtf() functions compute the non-negative square root of x.

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

SEE ALSO
     math(3)

STANDARDS
     The sqrt() function conforms to ANSI X3.159-1989 (``ANSI C89'').

HISTORY
     The cbrt() function appeared in 4.3BSD.

BSD
								    May 6, 1991 							       BSD