SysLinea

Solves Linear Systems
From a table it gives the function for Linear and Non Linear Regression.
Precompiled for Linux and Windows.
No instalations, just unpack (.zip) and click on the executable, can be run from a memory stick.


ATENTION!
On linux, sometimes the copy is not settled right, try to right click -> properties -> allow to be executed as a program.

It is not compiling in my new installation of Lazarus. Most likely some unit, class or variable changed since Lazarus 1.6.x and I didn't want to spend the time yet to find out what changed. P.S. It is the Graph Unity that changed.
Anyway, you probably want only the math parts and that don't change. Have fun!