Matx22f           899 modules/core/test/test_operations.cpp         Matx22f mat(2, 4, 6, 8);
Matx22f           900 modules/core/test/test_operations.cpp         Matx22f mat2(2, 2, 2, 2);
Matx22f           902 modules/core/test/test_operations.cpp         Matx22f res = mat.div(mat2);
Matx22f           400 modules/features2d/src/kaze/AKAZEFeatures.cpp   Matx22f A(0, 0, 0, 0);