c++ - Multidimensional arrays in eigen library

Question

3 simple questions about the usage and future of the excellent eigen library:

1. Does it have a reason why the access to Matrices is not possible via matrix[i][j], but only via matrix(i,j)?
2. Are there plans to implement such a syntax?
3. Will there be an implementation of multidimensional arrays matrix[n][m]...[l]?

I really like the eigen library, it is fast and easy to use. The only thing missing for me are really multidimensional arrays.

Answer 1

Multidimensional arrays are supported through the new Tensor module:

http://eigen.tuxfamily.org/dox-devel/unsupported/group__CXX11__Tensor__Module.html