一个简单的有限元三角形单元程序代码，网格划分好才能计算。-A simple triangular element finite element code, meshing well to calculate.

列主元高斯消去法和列主元三角分解法解线性方程 matlab代写代做编程调试修改QQ1747812398-Out PCA Gaussian elimination and main-element triangular decomposition method for solving linear equations matlab write on behalf of doing programming and debugging modify QQ1747812398