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ampl / mp

An open-source library for mathematical programming
https://mp.ampl.com
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Zero-coefficients in reformulation #211

Closed mapgccv closed 1 year ago

mapgccv commented 1 year ago

shifts.zip

Reformulation of the model above leads to a LE constraint with zero coefficient on a variable being passed to the solver. Some solvers (e.g. HiGHS) check for "small" coefficients and issue a warning.