Software by Erik Demaine

Most software listed below is free (in both senses of the word).

Mathematical Demonstrations

screenshot of origami maze app

Mathematical and Puzzle Fonts

Origami maze font/folder (left) computes the crease pattern to fold a desired maze or message.
Hinged dissection font renders letters that can be folded out of a single chain of 128 triangles.
Conveyer belt font is a puzzle font where you need to solve a conveyer-belt open problem to read the message.

screenshot of interlocked polygons app

Interlocked Polygons

Illustration of how to interlock polygons that fall apart exactly when a specified Boolean formula is satisfied, as described in a CCCG 2010 paper.

Miscellaneous

Boston Subway/Rail Google Map: An alternative map of the MBTA.
Events List (new version coming Real Soon Now!)
Backup To-Do: Save the history of your Toodledo tasks, folders, etc. Also a Python Toodledo API.
TOMPI (Threads-Only MPI Implementation): An MPI (Message-Passing Interface) implementation tuned for a workstation environment for developing parallel programs.
f90doc: A tool for documenting Fortran 90 code.

Last updated January 22, 2012 by Erik Demaine.