Spherical Geometry Explorer
This is a simple and powerful tool for exploring some basic ideas of spherical geometry.
http://www.math.psu.edu/dlittle/java/geometry/spherical/toolbox.html
In addition to investigating points, lines, and line segments on the surface of sphere, you can construct triangles, antipodes, and even circles in spherical geometry!
A picture may be worth a thousand words, but a good interactive spherical geometry applet is worth a thousand well-drawn diagrams!
2 Comments
John Golden (@mathhombre) · March 17, 2012 at 10:27 am
Your goo.gl link brings me back to this page. By any chance did you mean http://merganser.math.gvsu.edu/easel/ from my colleagues David and Will?
MrHonner · March 17, 2012 at 10:50 am
Thanks for the proof-reading, John! This is what I linked to:
http://www.math.psu.edu/dlittle/java/geometry/spherical/toolbox.html
But I’m definitely going to look into the spherical drawing program you’ve shared!