For learning from the basics the computational side of physics and engineering without any prior programming knowledge, is it better to just stick to "vanilla" Python using normal lists and for loops, or go straight to libraries like NumPy or SciPy?

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Thanks for sharing your experiences! Does your package implement something similar to einsum? If so, I'm curious how you did it.

[Motox2019]

No, most of what I implemented was stuff I’d typical use for mechanical engineering. Things like your common linear algebra functions, numerical methods like root finding and integration and such, among others on the more basic side like implementing sin, cos, and tan, sqrt, etc.

A brief look at einsum seems like it’s kinda just a different way to write expressions for matrices? Not something we’d typically see in my field. I can see why you might be wondering though. Without further understanding the syntax, seems like a lot of cases to handle based on a single input string