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If you have regular backups of your system, it'll be easy to find any temporary files left over by Mathematica by comparing directory listings pre- and post-incident. On Windows, if you're using a backup system that can mount the backup images as...
This is also why `Compile` supports `RuntimeOptions->{"EvaluateSymbolically"->False}`. That way compiled numerical functions don't run when presented with symbolic arguments, avoiding errors.
I'm not sure if it was intentional, the matrices not full rank, and they have different ranks as well: `MatrixRank[massMatrix] != MatrixRank[stiffnessMatrix]` As a purely stylistic matter, it's better to reserve names that start with uppercase...
> I need to recreate the lists from the arguments Is this all you really meant? Inside `fn`, `al` is a list of the arguments. fn[args___] := Module[{al=List[args]}, ... ] The arguments can also be given their own names: ...
0. The problem doesn't look trivial, so large amounts of memory will be needed. You haven't specified how much memory you've got. If it managed to fill up 64GB, I'd get concerned, but less than that is par for the course. You've entered high...