Hi all, I have been digging into the System.Random module lately. Initially, I was concerned about the split method, but trying to understand the code and algorithm, there are a couple of other issues that bother me. I hope this is the right forum to ask about them ... I think at least some of them are bugs, but then, there may be some deliberate design choices which I don't see. If there aren't, I guess I will propose a patch. Any opinions? 1. The range of the Standard Generator. stdRange gives a lower bound of 0. As far as I can see, 0 is an impossible value. Should the range not start at 1? 2. randomIvalInteger. One error has already been noted in the comment. Is it not trivial to calculate b based on genRange? Is there some drawback which has prevented such a change? 3. randomIvalInteger again. The drawing of n random numbers, multiplying the ith one by b^i, before summing them all, would make sense to me if the n random numbers had range 0..b-1, and we started the sum at acc=0. As far as I can see, the pseudo-random have range 1..b+1 (assuming the standard generator), and the acc parameter to f starts at 1. Is this a bug? Or what am I missing? 4. A possible error is also indicated by a comment in iLogBase, where iLogBase b b = 2. Should the if-condition i < b be changed to i <= b? Or is it more tricky? Thanks a lot in advance, :-- George