This JS-based Logo works nicely: http://logo.twentygototen.org/ http://logo.twentygototen.org/ Here are a few programs I made with it (note that the default is

This JS-based Logo works nicely: http://logo.twentygototen.org/ http://logo.twentygototen.org/ Here are a few programs I made with it (note that the default is to 'run normally'. You might want to click 'stop program' and then 'run fast'): * Sierpinski triangle: http://logo.twentygototen.org/83EGZPPC http://logo.twentygototen.org/83EGZPPC * Sierpinski carpet: http://logo.twentygototen.org/4c5iy9iU http://logo.twentygototen.org/4c5iy9iU * Sierpinski arrowhead curve: http://logo.twentygototen.org/hYDSZt8h http://logo.twentygototen.org/hYDSZt8h * Hilbert curve: http://logo.twentygototen.org/CFyUSzqG http://logo.twentygototen.org/CFyUSzqG * Hexaflake: http://logo.twentygototen.org/AJeuVkKc http://logo.twentygototen.org/AJeuVkKc