Black–Scholes Model
en.wikipedia.org
en.wikipedia.org
"Python for Finance", 2nd Edition (py4fi2nd) has a chapter on BSM with notebooks and a module: https://github.com/yhilpisch/py4fi2nd/tree/master/code/ch12 https://home.tpq.io/books/py4fi/
GH topic: black-scholes: https://github.com/topics/black-scholes