c99 [ flag... ] file... –lm [ library... ] #include <math.h> double cbrt(double x);
float cbrtf(float x);
long double cbrtl(long double x);
These functions compute the real cube root of their argument x.
On successful completion, these functions return the cube root of x.
If x is NaN, a NaN is returned.
If x is ±0 or ±Inf, x is returned.
No errors are defined.
See attributes(5) for descriptions of the following attributes: