Is there any way to perform a large N expansion using the software Mathematica?

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Mirko Aveta

Have you tried looking at the https://library.wolfram.com/ ?

Andrew James Bruce

The only thing that I am aware of, and I will stress is that I have never used it, is the FeynCalc package. I don't know if you can use those tools to build routines that you need. I suppose that you might you already know of this package.

Anyway, good luck.

https://feyncalc.github.io/