Slides that reveal J internals

[zhihaoy]

I gave a few talks for my employer on J engine data structures, tricks, etc., and I got permission to distribute some material here. I hope that can help this project moving forward.

Dynamic dispatch in J.pdf Dynamically-sized types and J.pdf Inner product in J.pdf Sparse array in J.pdf View types and J.pdf

[codereport]

Awesome! Thanks - I will look into these!