[Techtalk] Maths and Matrices
Carlo Hamalainen
ch at uq.net.au
Thu Aug 15 07:32:05 EST 2002
On Wed, 14 Aug 2002, Sue Stones wrote:
> Can anyone tell me what Linux packages can be used for doing maths processing
> on linux. In particular at the moment I want to deal with matrices. I would
> like to be able to print matrices properly.
What exactly do you mean by printing the matrices?
As someone else on the thread mentioned, octave is a good choice, and is
even compatible with Matlab's M-files. If you want plain text printouts of
matrices, octave will do this (see end of this email). Or, if you want to
get them into a LaTeX document, a short script can be written (let me know
if you're interested).
Or, I'm sure that octave's output can be pasted into some spreadsheet
package and printed from there...
-- Carlo
Sample octave session, solving a random 3x3 system of equations, ie.
Ax = b.
octave:1> rand
ans = 0.98015
octave:2> A = rand(3,3)
A =
0.031095 0.095578 0.033591
0.494036 0.266186 0.764909
0.088899 0.343124 0.504444
octave:3> b = rand(3,1)
b =
0.089730
0.023149
0.871475
octave:4> A\b
ans =
-2.6556
1.3551
1.2739
octave:5>
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