Matrix Math

A package to make matrix functions quick and easy
Maintained by Jeff Craig

Matrix Math is a package currently in an early phase that allows a user to quickly and easily perform mathematical operations on matrices.  This package has been designed to be easy to use, so it shouldn't take long to learn. Currently it is only distributed as source, which can be found in the files section.  Just untar it and run 'make' from the new directory. The executable places itself in the same directory as everything else, but it is standalone after compilation so it can be moved anywhere.

Development Notes

1.0.2 really fixes the inversion code this time, there was still a problem with returning the incorrect signs on the matrix it was sent.
Jeff Squyres has contacted me a few times and pointed out a limitations in this
project that when you get to dealing with bigger matrices (ones that exceed the
size of the L1 and L2 caches) that the code will begin to run REALLY slow. He makes a really good point, and pointed me to the Matrix Template Library (MTL). After thinking about his comments, I have decided not to change the way this project is working at this time. Part of the reason I support Open Source and Free Software is because I think that it helps people learn to program more than anything else, and I really wish I'd gotten into it earlier. The project as it stands is written in a clear, easy to read manner, and shows people programatically how to perform several fairly complex higher math functions. For people doing pure science work that involves really large matrices, something that utilizes the MTL would be more appropriate. For people who need a very small, easy to use package, to learn with, or compute non-massive matrices, the Matrix Math package is a good alternative.

Files
The most recent changelog can be found here
The most recent readme file is located here
Finally, the most recent bug file is here

Tarballs

Latest Stable: mtrxmath-1.0.2.tar.gz

Plans
The 1.0.0(stable) release supports addition, subtraction, multiplication, division, inversion, and determinants, but still has problems with file input on non-US systems.  It also sports a Makefile, and install and uninstall options in the Makefile

The future is a little hazier, now. Future versions will include code to compute anything that's seen fit for it. However,there are a few major features which are planned. If you have something you want to see in this source, send me an e-mail and tell me what it is, if you code C, don't be afraid to send me code too.  I am considering implementing a kind of console mode that will allow for more matrices to be stored in memory, and more complex series' of computations.

Ports
Eugenia Loli ported the package to BeOS.  Find the port here.