If you don't need precision, just generate ints and scale them.

-rob


On Tue, Feb 26, 2019 at 9:39 AM DrGo <salah.mah...@gmail.com> wrote:

> Thanks Ian,
> The std lib float32 is slow for my purpose. In my benchmarking it is
> actually slower than the float64. But I don’t even need float16 precision.
> I am working on implementing othe alias method for sampling from a fixed
> freq dist with possibly thousands of arbitrary values. So the rng doesn’t
> need to be precise or high quality because of rounding eg a rn of .67895
> might end up selecting the same arbitrary value as .67091 or even .65!!
> https://en.m.wikipedia.org/wiki/Alias_method
>
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