On Tue, Nov 9, 2010 at 12:56, Tim Kroeger
<tim.kroeger@cevis.uni-bremen.de> wrote:
Thank you, I found it now: The shell matrix does not implement MatMultAdd, only MatMult. Of course, it can't work then. Thank you very much!
Okay, but then it will error instead of silently modifying the vector.
Jed