Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #33269

Re: Division matrix

References <98b451e1-5cd5-46e9-8be4-59dcc835700b@googlegroups.com>
From "R. Michael Weylandt" <michael.weylandt@gmail.com>
Date 2012-11-13 22:14 +0000
Subject Re: Division matrix
Newsgroups comp.lang.python
Message-ID <mailman.3649.1352844896.27098.python-list@python.org> (permalink)

Show all headers | View raw


On Tue, Nov 13, 2012 at 1:00 AM, Cleuson Alves <cleuson.o@gmail.com> wrote:
> Hello, I need to solve an exercise follows, first calculate the inverse matrix and then multiply the first matrix.

I would just point out that in most numerical applications, you rarely
need to calculate the intermediate of the matrix inverse directly.
See, e.g., http://www.johndcook.com/blog/2010/01/19/dont-invert-that-matrix/

Of course, if this hasn't been said yet: NumPy.

Michael

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


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

csiph-web