# Reference 0. [A Fast, Compact Approximation of the Exponential Function](https://nic.schraudolph.org/pubs/Schraudolph99.pdf) 0. [ensmallen: flexible C++ library for efficient numerical optimization](http://ensmallen.org/docs.html) 0. [Labor of Division (Episode I)](https://ridiculousfish.com/blog/posts/labor-of-division-episode-i.html)