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Agree - real world discrete things should be modeled as such. If MPV was $0.23, then model $0.23 increments - whether you use fixed point, or the cardinality of
by bfrink 6y ago
Agree - real world discrete things should be modeled as such. If MPV was $0.23, then model $0.23 increments - whether you use fixed point, or the cardinality of increments, who cares. But all the other math leading up to a discrete decision on the increment is almost certain to be best described with, and faster to implement in, floats.
- proverbialbunny 6y agoOn modern day Intel cpus (no idea on AMD's side) math using longs is faster than math using floats. ymmv depending on architecture. https://stackoverflow.com/questions/2550281/floating-point-vs-integer-calculations-on-modern-hardware https://stackoverflow.com/questions/2550281/floating-point-v... Floats were not historically adopted for speed, but because you can get more decimal places with small numbers like 8 bit numbers. Today with 64 and 128 bit numbers, floating point loses most of its historical benefit, but of course it still has its benefits.