[Lapack] issues with wrong result..

[sabhnani at cs.cmu.edu]

Hi,

I downloaded clapack and trying to use dgetri and dpptri functions but am
getting wrong results for inverse of matrices.

Particularly,

[ 1 0.5 0.25 ]               [ 1.25 -0.5 0.0  ]
[ 0.5 1 0.5  ]    =====>     [ -0.5 1.25 -0.5 ]
[ 0.25 0.5 1 ]               [ 0.0 -0.5 1.25  ]

Do you know what might be the problem?

Thanks in advance for your time.
Robin