Part 2 - More Algorithms and New LaTeX-PDF automation

1. So I’ve added a new function to find determinant by reusing the LU code I have and created a new minor-cofactor expansion method code
2. There’s also bug in LaTeX formatting that I’ve just noticed as I paste the .txt output resulted from the testing into Overleaf.
3. Pasting each .txt test output to external websites feels tiring so I automated the pdf conversion with Python and Tectonic!

I suppose I’ll push these updates to github next and then continuing with linear regression before moving on into Next.JS and such.