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Questions on optimizing Mathematica code for higher performance. This may mean faster execution, lower memory usage or both. Not to be confused with mathematical optimization.

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What's an efficient way to relabel multiple dummy indices in a large expression?

Have you looked into the package suite called xAct? It was basically designed for precisely this purpose. It can be found here: http://xact.es/index.html An example of how to do your specific prob …
Ben Niehoff's user avatar