49   VERIFY(res.isApprox(res_d) && "mat*p");  in sparse_permutations()
53   VERIFY(res.isApprox(res_d) && "p*mat");  in sparse_permutations()
57   VERIFY(res.isApprox(res_d) && "mat*inv(p)");  in sparse_permutations()
61   VERIFY(res.isApprox(res_d) && "inv(p)*mat");  in sparse_permutations()
65   VERIFY(res.isApprox(res_d) && "p*mat*inv(p)");  in sparse_permutations()
70   VERIFY(res.isApprox(res_d) && "full selfadjoint upper to full");  in sparse_permutations()
74   VERIFY(res.isApprox(res_d) && "full selfadjoint lower to full");  in sparse_permutations()
79   VERIFY(res.isApprox(res_d) && "upper selfadjoint to full");  in sparse_permutations()
83   VERIFY(res.isApprox(res_d) && "lower selfadjoint full");  in sparse_permutations()
88   VERIFY(res.isApprox(res_d) && "full selfadjoint upper to full");  in sparse_permutations()
92   VERIFY(res.isApprox(res_d) && "full selfadjoint lower to full");  in sparse_permutations()
96   VERIFY(res.isApprox(res_d) && "upper selfadjoint to full");  in sparse_permutations()
100   VERIFY(res.isApprox(res_d) && "lower selfadjoint full");  in sparse_permutations()
105   VERIFY(res.isApprox(res_d) && "full selfadjoint upper to upper");  in sparse_permutations()
109   VERIFY(res.isApprox(res_d) && "full selfadjoint upper to lower");  in sparse_permutations()
113   VERIFY(res.isApprox(res_d) && "full selfadjoint lower to upper");  in sparse_permutations()
117   VERIFY(res.isApprox(res_d) && "full selfadjoint lower to lower");  in sparse_permutations()
123   VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to upper");  in sparse_permutations()
127   VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to upper");  in sparse_permutations()
131   VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to lower");  in sparse_permutations()
135   VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to lower");  in sparse_permutations()
140   VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to upper");  in sparse_permutations()
144   VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to upper");  in sparse_permutations()
148   VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to lower");  in sparse_permutations()
152   VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to lower");  in sparse_permutations()
157   VERIFY(res.isApprox(res_d) && "full selfadjoint upper twisted to full");  in sparse_permutations()
161   VERIFY(res.isApprox(res_d) && "full selfadjoint lower twisted to full");  in sparse_permutations()
165   VERIFY(res.isApprox(res_d) && "upper selfadjoint twisted to full");  in sparse_permutations()
169   VERIFY(res.isApprox(res_d) && "lower selfadjoint twisted to full");  in sparse_permutations()