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.

Run Spherical Easel as an applet in your web browser. Download Spherical Easel and install on your own machine.
German version of the applet
Download the German version

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.

Spherical Easel

© 2002-2020 David Austin and William Dickinson