function err = rhsfunction(dm,x,f) % % Example of a function needed by PetscDMSetFunction % For linear problems x is ignored % err = 0; f(:) = ones(length(f(:)));
function err = rhsfunction(dm,x,f) % % Example of a function needed by PetscDMSetFunction % For linear problems x is ignored % err = 0; f(:) = ones(length(f(:)));