alt Hacker NewsBut I guess using the density distribution of floating points is rarely useful in a problem. Your actual distribution will almost surely be way different. Imo, the tool presented here should provide a way to manually provide a custom density function (with some common presets like uniform and normal distributions).
Author here! Yes, the float distribution isn't what you want in practice, but distribution selector isn't really the right thing either, because a low probability bad result can still be pretty bad! Hence the range selector; the float distribution is good at picking extreme values that trigger FP error.
We usually recommend looking for 90%+ accuracy or carefully examining the accuracy plot