On Mon, 2021-08-23 at 17:24 +0200, Hans van der Meer via ntg-context wrote: > I guess the underlying library calls are from Lua5.4? Then it is > perhaps useful to know that between 5.3 and 5.4 there is mentioned a > new implementation for math.random. Perhaps it changes the sequence of > random values generated? Someone who knows?
https://tex.stackexchange.com/questions/468466/tikz-graphdrawing-differences-between-luatex-versions Cheers, Henri > > dr. Hans van der Meer > > > > On 23 Aug 2021, at 17:13, Hans Hagen via ntg-context < > > ntg-context@ntg.nl> wrote: > > > > On 8/23/2021 4:46 PM, Thierry Horsin via ntg-context wrote: > > > Hi everybody. > > > I wonder how does math.random() work in context. I found that this > > > subject was discussed more than ten years ago by Otared and Taco > > > and Thomas. It is clear to me how to obtain new results upon > > > typesetting the same file by changing the value of math.randomseed > > > (with os.time()). > > > If you don't change the seed, you get the same result upon each > > > typesetting, and a seed is given in the .tuc file. > > > For example I have this: > > > ["randomseed"]=0x1.0741c18b8a4ep-6 > > > How do I use (and is it possible to) this value to have the same > > > result of math.random() upon typesetting another file (with a > > > different name) ? > > > I could provide a same fixed seed in both files, but for some > > > reasons I would like to re-use some previous results of > > > math.random() for which no seed was initially given in another .tex > > > file. > > You have to go low level ... > > > > % \ctxlua{utilities.randomizer.setseed(0x1.0741c18b8a4ep-6)} > > % \ctxlua{utilities.randomizer.setseed(0x1.6822232009d5p-5)} > > > > \setrandomseed{123} > > > > \starttext > > test \randomnumber{1}{100} > > test \randomnumber{1}{100} > > test \randomnumber{1}{100} > > \stoptext > > > > btw, the 0x representation is lua's low level binary representation > > of a double. > > > > Hans > > > > ----------------------------------------------------------------- > > Hans Hagen | PRAGMA ADE > > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > > ----------------------------------------------------------------- > > _____________________________________________________________________ > > ______________ > > If your question is of interest to others as well, please add an > > entry to the Wiki! > > > > maillist : ntg-context@ntg.nl / > > http://www.ntg.nl/mailman/listinfo/ntg-context > > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > > archive : https://bitbucket.org/phg/context-mirror/commits/ > > wiki : http://contextgarden.net > > _____________________________________________________________________ > > ______________ > > _______________________________________________________________________ > ____________ > If your question is of interest to others as well, please add an entry > to the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : http://contextgarden.net > _______________________________________________________________________ > ____________ ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
