hotcommodity Posted May 1, 2007 Posted May 1, 2007 If I have z= ||v||u + ||u||v, can I say that (z/uv) = (||v||/v) + (||u||/u) ?
Bignose Posted May 1, 2007 Posted May 1, 2007 Assuming that those bold letters are vectors, division as you have used it there really isn't defined. i.e. if u = [1 0 13] and if v = [-4 7 2] what is u/v or v/u ? See: http://mathworld.wolfram.com/VectorDivision.html
Dave Posted May 1, 2007 Posted May 1, 2007 Bignose is quite correct; vector division isn't defined in any form so you can't use your stated "identity".
hotcommodity Posted May 1, 2007 Author Posted May 1, 2007 Yeah, I see what I did wrong. I should have divided by the norms instead. Thanks for the replies
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