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Talk:Random number generator (included): Difference between revisions
Talk:Random number generator (included) (view source)
Revision as of 07:29, 12 May 2012
, 12 years ago→ALGOL 68
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==Remove draft status?==
The entries so far are as I had hoped. --[[User:Paddy3118|Paddy3118]] 15:03, 24 January 2010 (UTC)
:A number of entries mention they invoke the rand() function from the C standard library. The wikipedia page for the linear congruential generator (whatever) mentions that the rand() in the library of many popular C implementations is of this type. There's also a link to a page that gives the spec. for the library's rand function. The spec is pretty loose. It doesn't specify the algorithm to be used by the PRNG. Only the interface, and some other properties. It does state that RAND_MAX must be 32767 or larger.
:My question is - should there be a C entry that describes the situation with the rand() function of its standard library or not?
:: There should definitely be a C entry, because so many others defer to it, but, I thought that the C implementations were likely to vary on different platforms, (which, if true, should also be noted)? The (good), thing about C is that it is used everywhere, including in embedded systems, and many C environments only approach the spec of a standardization effort --[[User:Paddy3118|Paddy3118]] 06:19, 30 January 2010 (UTC)
== Main types of PRNG ==
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Probably needs more work. Feel free to massage! –[[User:Dkf|Donal Fellows]] 16:17, 24 January 2010 (UTC)
: Not much massaging done, just added some WP links. Ta! --[[User:Paddy3118|Paddy3118]] 04:06, 25 January 2010 (UTC)
== R- shows up under tasks not implemented ==
http://rosettacode.org/wiki/Reports:Tasks_not_implemented_in_R shows that this is not implemented in R, but it is.
How can I fix this?
: Seems you hit a caching issue. That page is updated on-demand, but only once every 15 minutes at most (Otherwise, the server wouldn't be able to handle the load). I just looked at it, and it looks fine. --[[User:Short Circuit|Michael Mol]] 14:45, 1 March 2010 (UTC)
: Some browsers cache things themselves for longer than others. Some corporate caches are pernicious swines when it comes to caches too. Oh well. (Hitting Shift-Reload sometimes works. Clearing the browser cache sometimes works. Giving it a rest and returning in 15 minute might work too.) –[[User:Dkf|Donal Fellows]] 14:55, 1 March 2010 (UTC)
== ALGOL 68 ==
The ALGOL 68 entry seems to state what properties a RNG should have, but doen't seem to state what algorithm is used or, conversely, if any RNG satisfying the constraints can/is used. --[[User:Paddy3118|Paddy3118]] 07:29, 12 May 2012 (UTC)
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