x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CBRT(3) Linux Programmer's Manual CBRT(3)
NAME
cbrt, cbrtf, cbrtl - cube root function
SYNOPSIS
#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 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED || _ISOC99_SOURCE ||
_POSIX_C_SOURCE >= 200112L;
or cc -std=c99
cbrtf(), cbrtl():
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
_ISOC99_SOURCE || _POSIX_C_SOUCE >= 200112L;
or cc -std=c99
DESCRIPTION
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
These functions return the cube root of x.
If x is +0, -0, positive infinity, negative infinity, or NaN, x is
returned.
ERRORS
No errors occur.
ATTRIBUTES
Multithreading (see pthreads(7))
The cbrt(), cbrtf(), and cbrtl() functions are thread-safe.
CONFORMING TO
C99, POSIX.1-2001.
SEE ALSO
pow(3), sqrt(3)
COLOPHON
This page is part of release 3.69 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
GNU 2013-09-18 CBRT(3)
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