Contents

class String
  def palindrome?; self == reverse; end
end

class Integer
  def strictly_non_palindromic?
    return true if (0..4).include?(self) or self == 6
    prime? and (2..(isqrt)).none?{|base| base(base).palindrome?}
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
numb-0.152.0	lib/numb/strictly_non_palindromic.rb
numb-0.138.0	lib/numb/strictly_non_palindromic.rb
numb-0.125.0	lib/numb/strictly_non_palindromic.rb