5 #include "../detail/type_mat3x3.hpp" 
   15         typedef mat<3, 3, double, defaultp>             
dmat3x3;
 
   20         typedef mat<3, 3, double, defaultp>             
dmat3;
 
mat< 3, 3, double, defaultp > dmat3x3
3 columns of 3 components matrix of double-precision floating-point numbers. 
mat< 3, 3, double, defaultp > dmat3
3 columns of 3 components matrix of double-precision floating-point numbers.