This weeks quiz is about generating images from mathematical functions. Here is an example to see what I’m talking about.

depth: 3

red: Math.sin(Math::PI * Math.cos(Math::PI * y * x))

green: Math.sin(Math::PI * (Math.sin(Math::PI * y)) ** 3)

blue: (Math.cos(Math::PI * Math.cos(Math::PI * y))) ** 3

See the full quiz here: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/327126