On Wed, Mar 17, 2010 at 10:20:02PM -0700, Alexander Solla wrote:
On Mar 17, 2010, at 9:56 PM, Alexander Solla wrote:
But your "spherical" points don't really form a basis in three- space, or even over all of two-space.
I'll take this back. Lattitude and longitude is enough to "form a basis" on R^2, by taking a basis for the surface of the sphere in terms of latitude and longitude and projecting it stereographically. So if you wanted to use the normalization idea, you could use the stereographic projection formulas to turn a spherical point into a Cartesian point.
Yes. I believe other projections can be used as well (orthographic, etc). -- Darrin Chandler | Phoenix BSD User Group | MetaBUG dwchandler@stilyagin.com | http://phxbug.org/ | http://metabug.org/ http://www.stilyagin.com/ | Daemons in the Desert | Global BUG Federation