用VB实现线性方程组的求解。包括：高斯消元法，LU分解法追赶法，迭代法，奇异值分解，乔累斯基分解法等12种数值方法。-VB of linear equations to solve. Including : Gaussian Elimination Act, the law catch up with the LU decomposition, iterative method, singular value decomposition, Joe Cholesky decomposition 12 species of numerical methods.