33   Vec               v, x, y, Ax, Ay, Bx, By;  in main()  local
160   PetscCall(MatCreateVecs(B, &Bx, &By));  in main()
164   PetscCall(MatMult(B, Bx, By));  in main()
166   PetscCall(VecViewFromOptions(By, NULL, "-mult_vec_view"));  in main()
168   PetscCall(VecAXPY(Ay, -1.0, By));  in main()
172   PetscCall(VecScale(By, -1.0));  in main()
173   PetscCall(MatMultAdd(B, Bx, By, By));  in main()
174   PetscCall(VecNorm(By, NORM_INFINITY, &err));  in main()
175   PetscCall(VecViewFromOptions(By, NULL, "-mult_vec_view"));  in main()
215     PetscCall(VecCopy(Ay, By));  in main()
217     PetscCall(MatMultTranspose(B, By, Bx));  in main()
226     PetscCall(MatMultTransposeAdd(B, By, Bx, Bx));  in main()
233   PetscCall(VecDestroy(&By));  in main()