On Thu, 11 Nov 2021 13:59:51 GMT, Jim Laskey <jlas...@openjdk.org> wrote:
> The modified ziggurat algorithm is not correctly implemented in > `java.base/jdk/internal/util/random/RandomSupport.java`. > > Create a histogram of a million samples using 2000 uniform bins with the > following range: > Exponential range from 0 to 12. Gaussian range from -8 to 8. > > This does not pass a Chi-square test. If you look at the histogram it is > obviously not showing the shape of the PDF for these distributions. Look > closely at the range around zero (e.g. +/- 0.5). Marked as reviewed by darcy (Reviewer). ------------- PR: https://git.openjdk.java.net/jdk/pull/6353
