NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | SEE ALSO | COLOPHON

CBRT(3)                       Linux Programmer's Manual                       CBRT(3)

NAME         top

       cbrt, cbrtf, cbrtl - cube root function

SYNOPSIS         top

       #include <math.h>

       double cbrt(double x);
       float cbrtf(float x);
       long double cbrtl(long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       cbrt(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 || _ISOC99_SOURCE;
       or cc -std=c99
       cbrtf(), cbrtl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
       _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION         top

       The cbrt() function returns the (real) cube root of x.  This function cannot
       fail; every representable real value has a representable real cube root.

RETURN VALUE         top

       These functions return the cube root of x.

       If x is +0, -0, positive infinity, negative infinity, or NaN, x is returned.

ERRORS         top

       No errors occur.

CONFORMING TO         top

       C99, POSIX.1-2001.

SEE ALSO         top

       pow(3), sqrt(3)

COLOPHON         top

       This page is part of release 3.23 of the Linux man-pages project.  A
       description of the project, and information about reporting bugs, can be found
       at http://www.kernel.org/doc/man-pages/.

GNU                                   2008-08-05                              CBRT(3)