cbrt (3)

CBRT(3) Linux Programmer's Manual CBRT(3) 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(), cbrtf(), cbrtl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 || _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. CONFORMING TO C99 SEE ALSO pow(3), sqrt(3) GNU 2007-07-26 CBRT(3)