Contents

class Fixnum
  def binomial_coefficient bottom
    (self - bottom + 1 .. self).inject(1, &:*) / (2 .. bottom).inject(1, &:*)
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
rstat-0.1.0	lib/rstat/core_ext/fixnum/binomial_coefficient.rb