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From: | Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Possible truncation error |
Date: | 3 Jul 2000 15:51:30 GMT |
Organization: | Aachen University of Technology (RWTH) |
Lines: | 18 |
Distribution: | world |
Message-ID: | <8jqcq2$m2g$1@nets3.rz.RWTH-Aachen.DE> |
References: | <_x665.15310$Za1 DOT 242989 AT newsc DOT telia DOT net> <8jaurd$1tg$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE> <e3iplss77o2e7tof7njpnnb1eo845mdj24 AT 4ax DOT com> |
NNTP-Posting-Host: | acp3bf.physik.rwth-aachen.de |
X-Trace: | nets3.rz.RWTH-Aachen.DE 962639490 22608 137.226.32.75 (3 Jul 2000 15:51:30 GMT) |
X-Complaints-To: | abuse AT rwth-aachen DOT de |
NNTP-Posting-Date: | 3 Jul 2000 15:51:30 GMT |
Originator: | broeker@ |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comremovebullcr_p> wrote: > On 27 Jun 2000 19:21:17 GMT, Hans-Bernhard Broeker > <broeker AT physik DOT rwth-aachen DOT de> wrote: >>don't *ever* rely on the contents of the last (few) binary >>digits of floating point numbers. They're allowed to behave totally >>unpredictably. Don't try to understand the logic behind their >>behaviour --- there is none. > In that case, are they useful as extra entropy to inject into a > pseudorandom number generator every once in a while? :-) No. They're not a bit more reliably random than they are reliable precise. Neither would you want the quality of your random seeds to depend on the optimization flags used in compiling some code. -- Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de) Even if all the snow were burnt, ashes would remain.
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