7   Mat         C, C1, C2, CU;  in main()  local
90   PetscCall(MatDuplicate(C1, MAT_COPY_VALUES, &CU));  in main()
94   PetscCall(MatAXPY(CU, 2.0, C, UNKNOWN_NONZERO_PATTERN));  in main()
98   PetscCall(MatMultEqual(CU, C1, 10, &flg));  in main()
101     PetscCall(MatViewFromOptions(CU, NULL, "-view"));  in main()
103   PetscCall(MatDestroy(&CU));  in main()
107   PetscCall(MatDuplicate(C1, MAT_COPY_VALUES, &CU));  in main()
119   PetscCall(MatAXPY(CU, 2.0, C2, UNKNOWN_NONZERO_PATTERN));  in main()
123   PetscCall(MatMultEqual(CU, C1, 10, &flg));  in main()
126     PetscCall(MatViewFromOptions(CU, NULL, "-view"));  in main()
128   PetscCall(MatDestroy(&CU));  in main()
131   PetscCall(MatDuplicate(C2, MAT_COPY_VALUES, &CU));  in main()
134   PetscCall(MatAXPY(CU, 2.0, C, UNKNOWN_NONZERO_PATTERN));  in main()
138   PetscCall(MatMultEqual(CU, C2, 10, &flg));  in main()
141     PetscCall(MatViewFromOptions(CU, NULL, "-view"));  in main()
143   PetscCall(MatDestroy(&CU));  in main()