一种简单的基于拉格朗日线性插值算法、适合于有限元后处理所必须的绘制等值线方法。使用VC++软件发展的绘制等值线的程序，此程序采用拉格朗日线性插值算法适合于4边形4节点的有限元网格。-A simple linear interpolation algorithm based on Lagrange suitable for finite element post-processing necessary to draw the contour method. Software developmen

三次样条插值程序，这个需要配合追赶法来求解一个线性方程组。-Cubic spline interpolation procedure, this need with the catch-up method to solving a linear equation.

基于C语言的数值分析方法程序，包含Romberg方法、杜利特分解、龙贝格、线性插值法等4种常用分析方法。-Based on the C language numerical analysis method program, including Romberg method, Dullett decomposition, Long Beige, linear interpolation and other four commonly used analytical methods.