CBRT
Section: Linux Programmer's Manual (3)Updated: 2017-09-15
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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 versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
-
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 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
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Time: 04:45:43 GMT, September 16, 2022
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