Original matrix: 1.000000e+02 1.500000e+01 1.000000e-02 1.500000e+01 2.300000e+00 1.000000e-02 1.000000e-02 1.000000e-02 1.000000e+00 Product of Cholesky factors: 1.000000e+02 1.500000e+01 1.000000e-02 1.500000e+01 2.300000e+00 1.000000e-02 1.000000e-02 1.000000e-02 1.000000e+00 Check solution vector: 4.000095e-01 4.000000e-01 2.000082e-02 2.000000e-02 9.899999e+01 9.900000e+01