The theory of stochastic integration, also called the Ito calculus, has
a large spectrum of applications in virtually every scientific area
involving random functions. This introductory textbook on stochastic
integration provides a concise introduction to the Ito calculus, and
covers the constructions of Brownian motion, stochastic integrals for
Brownian motion and martingales, the Ito formula, multiple Wiener-Ito
integrals, stochastic differential equations, and applications to
finance, filtering theory, and electric circuits.