small fix in exx symmetry

Author: maki49

source/source_lcao/module_ri/module_exx_symmetry/irreducible_sector_bvk.cpp

@@ -12,7 +12,7 @@ namespace ModuleSymmetry
             {
                 return (symm.equal(a.e11, b.e11) && symm.equal(a.e12, b.e12) && symm.equal(a.e13, b.e13) &&
                     symm.equal(a.e21, b.e21) && symm.equal(a.e22, b.e22) && symm.equal(a.e23, b.e23) &&
-                    symm.equal(a.e31, b.e31) && symm.equal(a.e23, b.e23) && symm.equal(a.e33, b.e33));
+                    symm.equal(a.e31, b.e31) && symm.equal(a.e32, b.e32) && symm.equal(a.e33, b.e33));
             };
         std::vector<int> isymbvk2isym(bvkgmat.size(), -1);
         for (int isymbvk = 0;isymbvk < bvkgmat.size();++isymbvk)