Hello! Writing functions/mathematical models/anything that has crazy integrals, probability/you get my point from scratch!

Hello, I don't know where it came from, but I decided I want to actually try and write myself some math-related programming(Not machine learning, not AI necessarily, not physics modeling, just experimenting with taking advanced modeling/equations/tricky stuff) from SCRATCH. like no Numpy, No TensorFlow, No fancy I'll build you a probability distribution for you. More for me and skill development- enhancing both math capabilities and programming.
What do you think about doing it with Rust?
Anyone want to make it a joint effort?
Ron from Israel(Hopefully we could make an international team :-) )