gistfile1.rb

# A nice demonstration of how much faster Ruby 1.9 is than Ruby 1.8

require "complex"

class Complex
    def m
        z=self
        1024.times { |i| z=z*z+self; return i+1 if z.abs > 2 }
        return 1024
    end
end

(1.0).step(-1,-0.05) do |y|
    (-2.0).step(0.5,0.0315) do |x|
        print " .,:;~=/$@#"[(Math.log(Complex(x,y).m)/Math.log(2)).to_i].chr
    end
    puts
end