Inverse of a matrix in AMPL

[AbdeRahman Mostafa]

how to find the inverse of a matrix using Gaussian elimination in AMPL or any other method using equations other than LP probelm, as i have my main problem and i do not want to two have two prblems to solve

[AMPL Google Group]

In optimization applications, it is very rare that anyone wants to see an entire matrix inverse. Thus AMPL does not contain any routines for inverting a matrix; rather, matrix algorithms are left to the solvers.

I recommend using a library routine for the matrix inverse in some popular general-purpose language (for example, a SciPy routine in Python, or a matrix function in MATLAB). Then use the corresponding AMPL API to call AMPL to do your optimization.

--
Robert Fourer
am...@googlegroups.com

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