插值，函数逼近，矩阵特征值计算，数值微分，积分，方程求根，非线性方程求解，迭代，随机数生成，特殊函数，常微分方程，偏微分方程等常用的matlab程序。-Interpolation, function approximation, matrix eigenvalue calculation, numerical differentiation, integration, finding roots of equations, nonlinear equations, iterative, rand