With the development of technology and the proliferation of computers, many application areas to the original answer or manual data support the need for high-precision mathematical problems using computer hands of a better solution. This paper summarizes the micro-integral function with the ultimate derivative and integral of the analytic solution and integral double, triple integral, Integral curve, surface integral of the numerical solution of the problem using MATLAB language for the relevant theories and methods; also explained, summed up the linear algebra linear equation (group). Algebraic equations and optimize branch is the most constrained optimization problems and integer programming problems, linear ordinary differential equations and probability and statistics branch of the common types of problem solving using MATLAB software related theory, and basic methods.