David Richeson: Division by Zero

Mathematics Departments at Liberal Arts Colleges

Magic Eye Image as an Animated GIF

Type Math on a Mac—Remapping My Keyboard

Make a “Magic Eye” image using Excel

Making the Mandelbrot Set with Excel

Fold-and-Cut Turtle Tile

Fold-and-Cut Hat and Spectre Tiles

Cardioid Drawbridges

Folding a Cardioid

Connections with mathematical terms