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Groups > comp.graphics.apps.gnuplot > #1060
| From | brendan.halpin@ul.ie (Brendan Halpin) |
|---|---|
| Newsgroups | comp.graphics.apps.gnuplot |
| Subject | Re: fatal precision problem in gnuplot or fatal operator incompetence? |
| Date | 2012-04-28 15:33 +0100 |
| Message-ID | <87haw4lydm.fsf@wivenhoe.ul.ie> (permalink) |
| References | <jnggj3$s2a$1@online.de> <jngkj2$umr$1@online.de> |
On Sat, Apr 28 2012, 3031-866 wrote: > On 04/28/12 12:25, Charles T. Smith wrote: >> Why does: >> >> plot [0:1000] sin(x) >> >> seem to be modulated with what appears to be a sine wave? > > > Could this have anything to do with the fact that when I plot: > > > gnuplot> set parametric > gnuplot> set size square > gnuplot> r(t) = 1 - exp(-0.25*t/pi) # the radius as function of t > gnuplot> plot [0:25*pi][-1.1:1.1][-1.1:1.1] r(t)*cos(t), r(t)*sin(t) > > (from Gnuplot In Action, by Philipp K. Janert) > > I get a spiral of straight lines rather than a curving spiral, as shown > in the book? Yes, exactly so. Insert "set samples 10000" and you'll get your spiral. > > Is this a reason to be using 64 bit linux? No. Brendan -- Brendan Halpin, Department of Sociology, University of Limerick, Ireland Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147 mailto:brendan.halpin@ul.ie ULSociology on Facebook: http://on.fb.me/fjIK9t http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
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fatal precision problem in gnuplot or fatal operator incompetence? "Charles T. Smith" <cts.private@yahoo.com> - 2012-04-28 12:25 +0200
Re: fatal precision problem in gnuplot or fatal operator incompetence? 3031-866 <cts.private@yahoo.com> - 2012-04-28 13:33 +0200
Re: fatal precision problem in gnuplot or fatal operator incompetence? brendan.halpin@ul.ie (Brendan Halpin) - 2012-04-28 15:33 +0100
Re: fatal precision problem in gnuplot or fatal operator incompetence? "Charles T. Smith" <cts.private@yahoo.com> - 2012-04-28 16:45 +0200
Re: fatal precision problem in gnuplot or fatal operator incompetence? brendan.halpin@ul.ie (Brendan Halpin) - 2012-04-28 15:31 +0100
Re: fatal precision problem in gnuplot or fatal operator incompetence? "Charles T. Smith" <cts.private@yahoo.com> - 2012-04-28 16:43 +0200
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