说明：  DotNet版的线性方程的解法，包括：高斯消元法，用于n阶非奇异矩阵；SVD分解法，求最小二乘解.目前还很难找到免费的DotNet版的数值计算程序．这里有源码（J#)和dll文件．
(Kind version of the linear equation solution, including : Gaussian Elimination Act, for order n nonsingular matrix; SVD decomposition method, least squares solution seeking. It is hard to find a free version of its Kind numerical calculation procedures. Here source (J#) and dll file.)