▍1. SVD
这是一个数值计算Fortran程序,将矩阵进行奇异值分解,SVD.txt存放待分解的矩阵,u.dat,v.dat为分解后的左右矩阵,qiyizhi.dat和qiyizhi0.dat为得到的奇异值。(This is a numerical Fortran program matrix singular value decomposition, SVD.txt store to be factored matrix, u.dat, v.dat about decomposition of the matrix, qiyizhi.dat and singular value obtained qiyizhi0.dat .)