= Lucy Wayland - IEEE 754, FPUs and Other Animals = Most of us have used floats and doubles in our code, but very few people peer under the hood on how floating point numbers actually work. I will give a quick potted history of IEEE 754, a brief introduction to fixed point arithmetic, and then a reasonably comprehensive breakdown of how IEEE 754 floating point works. == Lucy Wayland == Lucy is an applications engineer at ARM, but prior to that, most of her professional life has been writing and testing SW that flies planes and drives trains. She has a bit of a Cthulhu obsession. * Slides: https://wiki.debian.org/LucyWayland?action=AttachFile&do=view&target=IEEE_754_FPUs_and_Other_Animals.pdf * Video: http://meetings-archive.debian.net/pub/debian-meetings/2015/mini-debconf-cambridge/webm/ieee_754_fpus_and_other_animals.webm