Information on calculator Random Number Generators from PPC Journal articles

[Pekis]

(11-11-2016 09:02 PM)Dieter Wrote:  

(11-11-2016 08:08 PM)Pekis Wrote:  A uniform distribution is needed: for generated numbers between 0 and 1, a mean of 1/2 is expected, as well as a variance of 1/12.

This is not much of a problem, not even for the (x+pi)² generator. With 100.000 random numbers the mean is about 0,499 and the variance ~0,087. Yes, the 997 generator comes closer to 0.5 and 0,0833 – but this does not matter much for game programs.

But there are other critera that should be considered for more sophisticated applications. Take a look at the PPC Journal article Gene posted here.

Dieter

I didn't see any reference to the 1/12 variance in the article ... It's however the first prerequesite for a uniform distribution between 0 and 1, and it seems better saying it