52   Vec         W1, W2, W3, diff;  in TestMatrix()  local
92   PetscCall(VecCreateSeqWithArray(PETSC_COMM_SELF, 1, 2, multadd, &diff));  in TestMatrix()
96   PetscCall(VecAXPY(W2, -1.0, diff));  in TestMatrix()
105   PetscCall(VecAXPY(W2, -1.0, diff));  in TestMatrix()
110   PetscCall(VecDestroy(&diff));  in TestMatrix()
113   PetscCall(VecCreateSeqWithArray(PETSC_COMM_SELF, 1, 2, multtadd, &diff));  in TestMatrix()
118   PetscCall(VecAXPY(W2, -1.0, diff));  in TestMatrix()
127   PetscCall(VecAXPY(W2, -1.0, diff));  in TestMatrix()
132   PetscCall(VecDestroy(&diff));  in TestMatrix()
135   PetscCall(VecCreateSeqWithArray(PETSC_COMM_SELF, 1, 2, multtadd, &diff));  in TestMatrix()
141   PetscCall(VecAXPY(W3, -1.0, diff));  in TestMatrix()
151   PetscCall(VecAXPY(W3, -1.0, diff));  in TestMatrix()
156   PetscCall(VecDestroy(&diff));  in TestMatrix()
161   PetscCall(VecCreateSeqWithArray(PETSC_COMM_SELF, 1, 2, diag, &diff));  in TestMatrix()
162   PetscCall(VecAXPY(diff, -1.0, W2));  in TestMatrix()
163   PetscCall(VecNorm(diff, NORM_2, &nrm));  in TestMatrix()
167   PetscCall(VecDestroy(&diff));  in TestMatrix()