CBRT(3) | Linux Programmer's Manual | CBRT(3) |
NAME
cbrt, cbrtf, cbrtl - cube root functionSYNOPSIS
#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():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 500 || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
cbrtf(), cbrtl():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
DESCRIPTION
These functions return 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
For an explanation of the terms used in this section, see attributes(7).Interface | Attribute | Value |
cbrt (), cbrtf (), cbrtl () | Thread safety | MT-Safe |
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.SEE ALSO
pow(3), sqrt(3)COLOPHON
This page is part of release 5.13 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 https://www.kernel.org/doc/man-pages/.2021-03-22 | GNU |