Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!osu-eddie!osupyr!hrubin From: hrubin@osupyr.UUCP Newsgroups: sci.math,sci.physics,sci.crypt,sci.math.stat Subject: Re: Do you use RANDOM NUMBERS? Message-ID: <122@osupyr.UUCP> Date: Fri, 20-Mar-87 16:07:04 EST Article-I.D.: osupyr.122 Posted: Fri Mar 20 16:07:04 1987 Date-Received: Sun, 22-Mar-87 23:44:00 EST References: <5712@reed.UUCP> <553@entropy.ms.washington.edu> <5722@reed.UUCP> Organization: Department of Statistics Lines: 16 Keywords: Random numbers, leprechauns Xref: utgpu sci.math:746 sci.physics:945 sci.crypt:255 sci.math.stat:80 Summary: mix random and pseudo-random There are purposes for which pseudo-random numbers are acceptable; In these cases quasi-random numbers are even better. However, no inexpensive pseudo-random generator has any good independence properties. What I do is to use a physically generated set exclusive or-ed with a reasonably good pseudo-random process, and the physical random numbers are stored on disk or similar device. It is rare that I would trust the results of a calculation using only pseudo-random numbers. -- Herman Rubin Until mid May: Department of Statistics, Cockins Hall, 1958 Neil Avenue Ohio State University, Columbus OH43210 hrubin@osupyr or cbosgd!osu-eddie!osupyr!hrubin or ts0474@ohstvma.bitnet "Permanent": Department of Statistics, Purdue University, West Lafayette IN47907 hrubin@l.cc.purdue.edu or ihnp4!pur-ee!stat-l!hrubin or hrubin@purccvm.bitnet