Ruby
2.0.0p247(2013-06-27revision41674)
|
00001 #include "ruby/missing.h" 00002 #include <math.h> 00003 00004 double cbrt(double x) 00005 { 00006 if (x < 0) 00007 return -pow(-x, 1/3.0); 00008 else 00009 return pow(x, 1/3.0); 00010 } 00011 00012