Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!brl-adm!seismo!mcvax!ukc!stl!phm From: phm@stl.UUCP Newsgroups: sci.math,sci.crypt,sci.math.stat Subject: Re: Do you use RANDOM NUMBERS? Message-ID: <520@u410a.stl.stc.co.uk> Date: Thu, 19-Mar-87 05:50:24 EST Article-I.D.: u410a.520 Posted: Thu Mar 19 05:50:24 1987 Date-Received: Sun, 22-Mar-87 20:36:43 EST References: <5712@reed.UUCP> Reply-To: phm@stl.UUCP (Peter Mabey) Organization: STL,Harlow,UK. Lines: 23 Keywords: Random numbers, history of computing Xref: utgpu sci.math:740 sci.crypt:254 sci.math.stat:79 In article <5712@reed.UUCP> mdr@reed.UUCP (Mike Rutenberg) writes: >How do people currently use RANDOM NUMBERS? Simulations? Anything else? > >How do you generate them? > >Do you think your results would benefit from using >truly random numbers rather than pseudo-random stuff? >Is it of enough interest to justify some time and effort? > I remember that back in the early '50s, there were machines that had an instruction_code which would give you a random number in the accumulator, derived from the electronic noise in the valves. (Not tubes - they were British :-) ! ) As I recall, it wasn't very popular, because the only way to get predictable values for debugging was to put in a patch to a routine to avoid it, and we didn't have such new-fangled things as assembler languages in those days. -- Regards, Peter Mabey (phm@stl ...!mcvax!ukc!stl!phm +44-279-29531 x3596)