文章的代码主要讲述椭圆型方程五点差分格式。用MATLAB软件来实现，大大提高了算法的精确度。-The code article focuses on five difference scheme for elliptic equations are considered. Use MATLAB software to realize, greatly improve the precision of the algorithm.

五点差分法(matlab)解椭圆型偏微分方程,内容详尽(Five-point difference method (matlab) Elliptic partial differential equations)