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 || _ISOC99_SOURCE; or cc -std=c99 cbrtf(), cbrtl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; 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.
CONFORMING TO
C99, POSIX.1-2001.
SEE ALSO
COLOPHON
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