[petsc-users] Elementwise pow/exponential-function on PETSc-vectors and matrices

[Pierre Seize]

Hi,

For Vec there is 
https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecSqrtAbs.html 
and 
https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecPointwiseMult.html, 
I think it's what you're looking for. I don't know if there is the same 
for Mat.

Pierre

On 05/01/21 16:24, Roland Richter wrote:
> Hei,
>
> is there a function to square/cube etc. each element of a matrix or
> vector in PETSc? It is rather useful for things like intensity
> calculations (I = |E|^2), and should work also for distributed matrices.
>
> Thanks!
>
> Regards,
>
> Roland Richter
>