Three-Sided is the ultimate flashcard app for serious maths and physics students. Master definitions, hints, and full proofs with structured, three-part cards. Designed for deep learning and powered by spaced repetition, LaTeX-style rendering, and AI-assisted creation.
You can import my flashcards to get started instantly — then refresh this page to study them. (What's new?)
Tip, wrap your maths in $ $. Avoid \( ... \) if you're using the autofill feature! And use $$ ... $$ for features like \begin{align*}.
Also, for now you have to be logged in to use DeepSeek features, there will be guest usage enabled soon!