On Tue, 27 Feb 2018 11:27:21 +0000, bartc wrote: [...] >> The built-in generator is using a completely different algorithm >> though, so rate of generation isn't the entire story. How long is the >> period of the one you're using? (How long before it loops?) > > I believe it's 5*2**1320480*(2**64-1) according to the author's comment. > > I haven't tested that.
What, you haven't run a full period of the generator? I thought your code was fast! *wink* Sorry, I couldn't resist... :-) But for the record, if we could generate a million million numbers per second, that is one every picosecond, the total time would be of the order of 10**397504 years. That's a one followed by three hundred ninety- seven thousand zeroes. > (By looping I understand that to mean, before the same sequence starts > again. Because as the numbers are 64 bits, individual numbers will > inevitably be repeated from time to time.) Yes, that's what the period means: how long it takes for the entire sequence to repeat, not just a single number. -- Steve -- https://mail.python.org/mailman/listinfo/python-list
