316       Vec dA, dS;  in main()  local
319       PetscCall(MatCreateVecs(S, &dS, NULL));  in main()
321       PetscCall(MatGetDiagonal(S, dS));  in main()
322       PetscCall(VecAXPY(dA, -1.0, dS));  in main()
326       PetscCall(VecDestroy(&dS));  in main()
341       Mat      sA, sS, dA, dS, At, St;  in main()  local
356       PetscCall(MatConvert(sS, MATDENSE, MAT_INITIAL_MATRIX, &dS));  in main()
357       PetscCall(MatAXPY(dA, -1.0, dS, SAME_NONZERO_PATTERN));  in main()
363       PetscCall(MatDestroy(&dS));  in main()
373       PetscCall(MatConvert(sS, MATDENSE, MAT_INITIAL_MATRIX, &dS));  in main()
374       PetscCall(MatAXPY(dA, -1.0, dS, SAME_NONZERO_PATTERN));  in main()
380       PetscCall(MatDestroy(&dS));  in main()
388       Mat          tA, tS, dA, dS;  in main()  local
410       PetscCall(MatConvert(S, MATDENSE, MAT_INITIAL_MATRIX, &dS));  in main()
411       PetscCall(MatAXPY(dA, -1.0, dS, SAME_NONZERO_PATTERN));  in main()
415       PetscCall(MatDestroy(&dS));  in main()