High Quality Content by WIKIPEDIA articles! SnapPea is free software designed to help mathematicians, in particular low-dimensional topologists, study hyperbolic 3-manifolds. The primary developer is Jeffrey Weeks, who created the first version as part of his doctoral thesis, supervised by William Thurston. The latest version is 3.0d3. Marc Culler and Nathan Dunfield have a version which extends SnapPea`s Python interface (see external links below).