[Python-Dev] Re: Should we require IEEE 754 floating-point for CPython?

On Mon, Feb 07, 2022 at 06:23:52PM +0000, Mark Dickinson wrote:

- Should we require IEEE 754 floating-point for CPython-the-implementation? - Should we require IEEE 754 floating-point for Python-the-language?

If the answer to those questions are Yes, that rules out using Unums, posits, sigmoid numbers etc as the builtin float. (The terminology is a bit vague, sorry.) Do we want that? https://ieeexplore.ieee.org/document/8080000 https://en.wikipedia.org/wiki/Unum_%28number_format%29 https://github.com/interplanetary-robot/SigmoidNumbers Posits are hyped as "better than IEEE-754", I have no idea if it is all hype or if they actually are better or just different. -- Steve