Spherical Easel A spherical drawing program

Spherical Easel is a program for creating interactive diagrams in spherical geometry. It may be viewed as a companion to The Geometer's Sketchpad and Non-Euclid, programs for studying Euclidean and hyperbolic geometry, respectively.





Spherical Easel is created by David Austin and Will Dickinson. Please send us any comments you have about Spherical Easel. We are particularly interested in hearing about how you are using Spherical Easel as well as any improvements you feel could be made.

