33   Vec               v, x, y, Ax, Ay, Bx, By;  in main()  local
160   PetscCall(MatCreateVecs(B, &Bx, &By));  in main()
162   PetscCall(VecCopy(Ax, Bx));  in main()
164   PetscCall(MatMult(B, Bx, By));  in main()
173   PetscCall(MatMultAdd(B, Bx, By, By));  in main()
217     PetscCall(MatMultTranspose(B, By, Bx));  in main()
219     PetscCall(VecViewFromOptions(Bx, NULL, "-multtrans_vec_view"));  in main()
221     PetscCall(VecAXPY(Ax, -1.0, Bx));  in main()
225     PetscCall(VecScale(Bx, -1.0));  in main()
226     PetscCall(MatMultTransposeAdd(B, By, Bx, Bx));  in main()
227     PetscCall(VecNorm(Bx, NORM_INFINITY, &err));  in main()
232   PetscCall(VecDestroy(&Bx));  in main()