ldlt_key.dat

LDL 分解源码。从文件输入数据

Original parameters:
n = 3
       1       0.5       0.5         1
     0.5         1       0.5        -2
     0.5       0.5         1         3

After calculated:
       1       0.5       0.5         1
     0.5      0.75      0.25        -5
     0.5     0.333     0.667         5

Answers x[]:
       1      -5       5