This handbook covers important formulas, functions, relations and methods from algebra, trigonometric and exponential functions, combinatorics, probability, matrix theory, calculus and vector calculus, both ordinary and partial differential equation, Fourier series, orthogonal polynomials, and Laplace transforms. It is designed for students, scientists and engineers. Key features include: special thumb-tab index for ease of use; answers keyed to the type of problem they solve; formulas for problems across the entire spectrum of Mathematics; formulas sent from a computer-checked source code. This text is a companion to Gradshteyn: Table of Integrals, Series, and Products.