Inspired by a literal doily posted by mrvelocipede on tumblr. [url]http://mrvelocipede.tumblr.com/post/93403609810/it-was-inevitable-that-i-would-try-this-at-some[/url] I'm still thinking about how to dynamicize the number of levels of Sierpinski's triangle...
More GeoGebra at [url]bit.ly/mh-ggb[/url]