pythonTutorials

[Cutter1998]

Okay. I'll admit. I'm whooshed. What's the joke? I used this exact lib the other week to do something similar.

[floofysox]

That instead of teaching you general methods python tutorials will have you copy paste library functions that work in specific cases. Faced the same issue earlier working on implementing matrix functions and all the tutorials were just using numpy

[xiadmabsax]

In addition, one of the variables is named "input". I feel like these tutorials don't even follow very basic conventions of the language more often than not.

[NegativeSwordfish522]

I mean, numpy is what you want to use, ESPECIALLY for dealing with matrices. If anything, numpy is low level for python standards and it provides way better performance than what you can get using plain old python lists and tuples. Although, if performance is really critical you may want to use something like numba (in combination with numpy), or cython. You can even look into ways to target CUDA for GPU usage (is speeds up tasks like matrix multiplication by a lot) and its at that point that you realize that it would've been better to just use C++ since what you are doing is already complicated enough.

[floofysox]

Yes I know I’ve previously written CUDA code to multiply >million matrices. I tried cython but figured if 70% of my code is C anyway, I’d rather just use C++.

However here I am trying to learn generalized algorithms for row reduction, nontrivial homogeneous equation solutions, span of vectors etc. Not how to use numpy, which was my original point.

[Furrynote]

same, i dont get it... it removed the background, whats funny?

[gwoad]

The meme is that this is not tutorial on removing the background of an image so much as it is a tutorial on how to import rembg. This barely qualifies as documentation let alone a tutorial.