NAME    [Toc]    [Back]

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

SYNOPSIS    [Toc]    [Back]

     #include <math.h>

     double
     cbrt(double x);

     float
     cbrtf(float x);

     double
     sqrt(double x);

     float
     sqrtf(float x);

DESCRIPTION    [Toc]    [Back]

     The  cbrt()  function  computes  the  cube  root  of x.  The
cbrtf() function is
     a single 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().

RETURN VALUES    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

     math(3)

HISTORY    [Toc]    [Back]

     The cbrt() function appeared in 4.3BSD.

OpenBSD      3.6                            May      6,      1991