View Single Post
  #257  
Old 05-30-2006, 06:59 PM
Burt's Avatar
Burt Burt is offline
Hobbesian
Member
 
Join Date: Feb 2006
Location: We're......Everywhere! Wait wait wait... That's the Founders. No, I'm just in Hastings
Posts: 452
Send a message via MSN to Burt
Default

A transformation is conformal, or angle-preserving, if at every point the Jacobian is a scalar times an orthogonal matrix; this means that if J is the Jacobian, then JJT = kI. Computing the Jacobian in the case zi = xi/||x||^2, where ||x||^2 = x12+...+xn2 gives JJT=kI, with k = 1/||x||^4; hence.......what?



Goddess Artemis! Slain thy enemies.....
__________________
Fate: Protects fools, little children and ships named Enterprise...
Fate: Also beats the merry hell out of the Battlestar Galactica.
--------------------------------------------------
House Quote of the Day!
"I was curious. But since I'm not a cat, that's not dangerous to me." Dr House MD
I don't think that metaphor was actually designed to warn cats.
Dr Wilson MD (Just)
-------------------------------------------------
Reply With Quote