The Matrix logarithm and sas

[LineMoon]

Does  the matrix logarithm exist ?  if yes, it is with some conditions ?

what's about sas function for the matrix logarithm.

Thank you.

[Ksharp]

Yeah. There is.

But you need to post it at IML forum . SAS/IML has such function .

EXPMATRIX(matrix);

Xia Keshan