Patterns Problem
- To: mathgroup at smc.vnet.net
- Subject: [mg28151] Patterns Problem
- From: Janusz Kawczak <jkawczak at math.uncc.edu>
- Date: Mon, 2 Apr 2001 02:18:22 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Dear Mathematica Users: I am trying to force an output to appeat in a certain way, but without much success. Here is my problem. First, how to "teach" M. that some symbols are matrices, vectors, etc... and that the laws of the real arithmetic do not apply. Let's take A to be a matrix, and u and v, vectors. I would like to have the following: u A (u - <u>)=u A u -u A <u> the operator is not symmetric. Whenever I do this oparation I get something like A u u or A u ^2. I just cannot force the order to be correct! Also, I would like to have the oparator to be iterative, i.e. v A {(u A (u - <u>) -<u A (u - <u>)>} =v A u A u - v A u A <u> - v A <u A u> + v A u A <u>, and so on. Any suggestions. Thank you in advance. Janusz. P.S. Please cc to jkawczak at math.uncc.edu