I've been following this for a while on GitHub and I think it is a very impressive project. Nim would be a great language for scientific computing, but it needs to have the numerical libraries and this is an excellent first step in creating them.
A couple of questions. First, are you planning to add neural network functionality directly to Arraymancer? Surely that would be something better suited for a separate, specialised library? A second, more general, question I have is whether you'd consider making the [get_data_ptr](https://github.com/mratsim/Arraymancer/blob/master/src/arraymancer/data_structure.nim#L62) proc public. It would be nice to be able to integrate your tensors with wrappers for existing numerical software written in C and we'd need access to the raw data for that.
