CBRT
CBRT
Section: Linux Programmer's Manual (3) Updated: 2010-09-20 Local index
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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
cbrt ():
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED || _ISOC99_SOURCE ||
_POSIX_C_SOURCE >= 200112L;
cc -std=c99
cbrtf (),
cbrtl ():
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE ||
_POSIX_C_SOUCE >= 200112L;
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.
CONFORMING TO
C99, POSIX.1-2001.
SEE ALSO
pow sqrt
COLOPHON
This page is part of release 3.27 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/.
Index
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
SEE ALSO
COLOPHON
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