Art and math are two very distinct things - art being a typically right-brained activity, and math being very much a left-brained activity, and never the twain shall meet. However, developer John Miller has brought the two together, with his app Geom-e-Tree. A universal app for iPhone and iPad, you use the multitouch interface to change the angle and number of branches on the tree you're given to create increasingly complex trees and designs. Reading the in-game help screen or watching the tutorial video embedded below are a huge help for understanding how the app works beyond just creating crazy geometric designs. You could just randomly move fingers around and hope to get crazy designs, or you could follow the instructions, use the techniques provided to create something a bit less nonsensical than random pinching and dragging will get you. If you get a design that you like, you can save it to your arboretum to call it back up, email it to someone, or save it to your Photo Library. As well as the $1.99 Geom-e-Tree app, there's a simpler version for kids entitled Geom-e-Twee, that's currently available for free.
