The flaw has to do with the choice of algorithms typically employed for random number generation, so mathematics in general and in no way specific to Mozart. If you care to know more, please consult Knuth's volume containing random number generation (if memory serves me right, it is seminumerical algorithms): interesting stuff as always.
Christian -- Christian Schulte, http://web.imit.kth.se/~schulte/ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Boriss Mejias Sent: Monday, April 03, 2006 11:09 PM To: [EMAIL PROTECTED] Subject: Re: Generating Random Numbers Christian Schulte wrote: > Dear Boriss, > > I mentioned the issue before with random numbers, but here we go > again: never use modulo, use divison instead for scaling to the right > range of numbers. mod tends to not deliver good sequence of random > numbers! > Sorry, I was not aware of this problem. thanks for pointing it out. But is it just related to Mozart? or is it a mathematical problem in general? cheers Boriss > Christian > > -- > Christian Schulte, http://web.imit.kth.se/~schulte/ > > > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Boriss Mejias > Sent: Monday, April 03, 2006 9:13 PM > To: Alan Oswald > Cc: [EMAIL PROTECTED] > Subject: Re: Generating Random Numbers > > > Hi Alan, > > if you are working in the OPI, there is no need for importing that > library. Go to the Oz menu, and then Open Compiler Panel. In the > Environment you will see everything that is already load. > > To generate a random number try > > {Browse {OS.rand}} > > that will be a random integer. > To generate a random number between 0 and 10, the usual stuff is > > {Browse {OS.rand} mod 10} > > cheers > Boriss > > Alan Oswald wrote: > >>Jorge >> >>Thenk you but when I try this in the OPI I get an "Illegal use of >>nesting marker" error at line 1, column 0. >> >>Alan >> >> >>---------------------------------------------------------------------- >>-- >> >> > > ______________________________________________________________________ > ______ > _____ > >>mozart-users mailing list > > [email protected] > >>http://www.mozart-oz.org/mailman/listinfo/mozart-users > > > ______________________________________________________________________ > ______ > _____ > mozart-users mailing list > [email protected] > http://www.mozart-oz.org/mailman/listinfo/mozart-users > > ____________________________________________________________________________ _____ mozart-users mailing list [email protected] http://www.mozart-oz.org/mailman/listinfo/mozart-users _________________________________________________________________________________ mozart-users mailing list [email protected] http://www.mozart-oz.org/mailman/listinfo/mozart-users
