13   PetscReal     s1norm, s2norm, rnorm, tol = 1.e-4;  in main()  local
70   rnorm = PetscAbsReal(s2norm - s1norm) / s2norm;  in main()
71 …if (rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error: MatNorm_FROBENIUS()- NormA=%16.14e…  in main()
74   rnorm = PetscAbsReal(s2norm - s1norm) / s2norm;  in main()
75 …if (rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error: MatNorm_INFINITY()- NormA=%16.14e …  in main()
78   rnorm = PetscAbsReal(s2norm - s1norm) / s2norm;  in main()
79 …if (rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error: MatNorm_NORM_1()- NormA=%16.14e No…  in main()
114     rnorm = s2norm - s1norm;  in main()
115 …if (rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "MatMult not equal to MatM…  in main()
172     PetscCall(VecNorm(yy, NORM_2, &rnorm));  in main()
173 …rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error:MatForwardSolve/MatBack…  in main()
187     rnorm = s2norm - s1norm;  in main()
188 …if (rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error:MatSolveAdd - Norm1…  in main()
200     rnorm = s2norm - s1norm;  in main()
201 …if (rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error:MatSolveAdd(same) -…  in main()
211     rnorm = s2norm - s1norm;  in main()
212 …if (rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error:MatSolve - Norm1=%1…  in main()
223       rnorm = s2norm - s1norm;  in main()
224 …if (rnorm < -tol || rnorm > tol) PetscCall(PetscPrintf(PETSC_COMM_SELF, "Error:MatSolveTranspose -…  in main()