Stanford CS 229 Cheatsheets

This repository by Afshine Amidi contains beautifully designed cheatsheets covering the full curriculum of Stanford's CS 229 Machine Learning course. Topics span supervised learning, unsupervised learning, deep learning, reinforcement learning, probability theory, and algebra refreshers — all condensed into dense, visually organized reference sheets. With nearly 20,000 GitHub stars it is one of the most widely shared ML study resources.