Constructs a mtx_flat<T> object
[C++]
mtx_flat();
mtx_flat(
   size_t dim0,
   size_t dim1
);
mtx_flat(
   const mtx_flat<T>& mat
);
The initial size of dimension 0
The initial size of dimension 1
A reference to a mtx_flat<T> object.
The third version of the contructor copies the contents of its argument into
            the new matrix object.
Header: plemtx.h