Some feedback needed here: https://github.com/mipt-npm/kmath/issues/89. @Peter Klimai wants to implement interface level with krangl. Obviously we need this integration when we want to peform some kind of performance-critical mathematic operations on krangl data. The question is when we should do it and which structures are important.

@Iaroslav Postovalov we were looking for some feedback here but I don't think we got any. Anyhow I didn't do anything yet on this, so you are welcome to try.

@Peter Klimai nice, I forgot about this discussion. The thing with krangl and kmath is that they have different aim. Krangl or dataforge-tables work with typed data, mostly in columnar format. They are intended to works with rows and columns, but rarely with the whole data block. Kmath nd-structures are about uniform strunctures and operations on them. I am not sure that there should be direct interoperability between those.