Hi! I would like to ask if it is possible to create a MatNest matrix that contains matrices, vectors and scalars.
My (jacobian) matrix looks like the following [[A, B, a, b], [C, D, c, d], [e, f, g, h]] where A-D are sparse square matrices, a-d are dense column vectors, e, f are sparse row vectors and g,h are just scalars. Is there also a petsc4py example that shows how nest objects should be created and how they should be used? Best regards Thomas
