Software for Solving Ill-Conditioned Systems of Linear Equations

MATLAB: The latest version of ARLS (2.0) is now available for MATLAB at

and a discussion of it is available at

A PDF of my dissertation from 1985 is here.


Python: The older ARLS 1.0 for Python is still available from Python’s contributed library by executing “pip install arls

C++  version 1.0 is available via email to

“Go” is no longer supported.

A Short Tutorial on why even small systems of linear equations can be seen at hard to solve