Hi, I see that implementation of MatSetValues handles a special case when one passes a null pointer v=0. In this case, it is considered that all values are 0. But the documentation doesn't seems to talk about it : http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatSetValues.html
Is it a feature that we can use? Should it be added to the doc? Patrick Lacasse
