Contents

class Integer
  def centered_cube?
    1.upto(Math.cbrt(self)).any? do |n|
      self == n**3 + (n - 1) ** 3
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
numb-0.152.0	lib/numb/centered_cube.rb
numb-0.138.0	lib/numb/centered_cube.rb
numb-0.125.0	lib/numb/centered_cube.rb
numb-0.114.0	lib/numb/centered_cube.rb