完全的二维数值积分程序

给出自变量和函数值的矩阵，便可以计算其二重积分。这里采用simpson积分法

比matlab自带的dblquad好用多了，霍霍！

同时附有口径场用Gaussian-Lagurrer函数展开程序-Fully two-dimensional numerical integration procedure to the variables and function values from the matrix, we can calculate the double integral. Simpson integration method used here than matlab s own dblquad more useful, scrape of a knife! At the same time with a caliber field with Gaussian-Lagurrer function expansion procedure