A careful derivation of Ito's lemma, the stochastic-calculus chain rule that underpins Black-Scholes, geometric Brownian motion, and every SDE-based model in modern quantitative finance. With worked examples in Python.


A careful derivation of Ito's lemma, the stochastic-calculus chain rule that underpins Black-Scholes, geometric Brownian motion, and every SDE-based model in modern quantitative finance. With worked examples in Python.