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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);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_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.ERRORS¶
No errors occur.CONFORMING TO¶
C99, POSIX.1-2001.SEE ALSO¶
pow(3), sqrt(3)COLOPHON¶
This page is part of release 3.44 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/.2010-09-20 | GNU |