Question: getting list data into a matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg17225] Question: getting list data into a matrix
- From: Ben Johnson <bdjohns1-usenet at uiuc.edu>
- Date: Mon, 26 Apr 1999 01:20:55 -0400
- Organization: University of Illinois at Urbana-Champaign
- Sender: owner-wri-mathgroup at wolfram.com
I'm trying to convert some equations from a list into a matrix to solve.
(I'm in a linear algebra class, and I don't want to use the Solve[]
instruction to do it).
The data is in a list that looks like this:
{2 a[1]+3 b[1]+4 c[1]==0, 2 a[2]+4b[6]==24} etc.
There's 24 independent
variables, a[1] through d[6], which need to have the left-hand side read
into a 24x24 matrix, (let's call it A), and a 24 element vector
taken from the right-hand side (call it Y), so that taking Inverse[A].Y
will give me my unknowns.
Any help would be appreciated. Please reply to bdjohns1 at uiuc.edu - my
header address will work, but it's a spam-trap.
Thanks in advance for any help.
--
Ben Johnson
bdjohns1-usenet at uiuc.edu
(remove -usenet to reply)