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cbrt, cbrtf, cbrtl - cube root function
#include <math.h>
double cbrt(double x);
float cbrtf(float x);
long double cbrtl(long double x);
The cbrt() function returns
the (real) cube root of x. This function cannot fail; every representable
real value has a representable real cube root.
cbrt() was a
GNU extension. It is now a C99 requirement.
sqrt(3)
, pow(3)
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