对角矩阵D:
1.000000
-3.000000
-6.666667
-2.400000
-8.163857
下三角矩阵L:
1.000000 0.0000000E+00 0.0000000E+00 0.0000000E+00 0.0000000E+00
2.000000 1.000000 0.0000000E+00 0.0000000E+00 0.0000000E+00
3.000000 0.6666667 1.000000 0.0000000E+00 0.0000000E+00
4.000000 1.000000 1.200000 1.000000 0.0000000E+00
3.400000 0.7133334 0.3515001 -0.1383337 1.000000