masa16/narray — pull request #20 by ohai (2012-09-02 06:58:39+00:00)
Title: Change NMath#recip into a module function

Now NMath#recip is a instance method of module NMath, not a module function, and we can't use
it as NMath.recip(NArray[1.0, 2.0, 3.0]).

I think it will be useful if the method is a module function.