first_practice_compute\CG.m ......................\CGjisuan.m ......................\Diag.mat ......................\diedaifa.m ......................\GeneMatrixA50.m ......................\Lanc.m ......................\Lancjisuan.m ......................\Matrixdata.mat ......................\MINjisuan.m ......................\MINRES.m ......................\MY_SOR.m ......................\PCG_SGS.m