Re: Division matrix

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From	Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject	Re: Division matrix
Date	Tue, 13 Nov 2012 13:48:00 -0500
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On Tue, 13 Nov 2012 10:19:43 -0200, Cleuson Alves <cleuson.o@gmail.com>
declaimed the following in gmane.comp.python.general:

> Thanks, I'm starting to plan now, so I'm still confused with the production
> code, but what I need is to divide array 2x2 or 3x3.
> I still can not!

	Divide it by what? A scalar... Another square matrix of the same
size... Or a square matrix of a different size (is that even
possible?)...

	Based
http://en.wikipedia.org/wiki/Division_%28mathematics%29#Division_of_matrices
 upon, I can understand where the need for the inverse comes from -- and
multiplication by the inverse gives the "division". Next up,
http://en.wikipedia.org/wiki/Invertible_matrix#Inversion_of_2.C3.972_matrices
gives direct formulations for 2x2 and 3x3 matrices.

-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

Thread

Division matrix Cleuson Alves <cleuson.o@gmail.com> - 2012-11-12 17:00 -0800
  Re: Division matrix Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-12 18:25 -0700
  Re: Division matrix Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-11-13 13:48 -0500
  Re: Division matrix "R. Michael Weylandt" <michael.weylandt@gmail.com> - 2012-11-13 22:14 +0000
  Re: Division matrix wxjmfauth@gmail.com - 2012-11-14 01:04 -0800

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