From bug-octave-request at che dot utexas dot edu  Mon Oct 10 21:04:10 1994
Subject: Re: plot bug 
From: John Eaton <jwe at che dot utexas dot edu>
To: Arnold Neumaier <neum at cma dot univie dot ac dot at>
cc: bug-octave at che dot utexas dot edu, guenther@cma.univie.ac.at
Date: Mon, 10 Oct 94 21:04:03 EDT

Arnold Neumaier <neum at cma dot univie dot ac dot at> wrote:

: The two lines 
: 
: x=.995:.0001:1.005;
: plot(x,(1-x).^6)
: 
: lead to the ridiculous warning
: 
: Warning: empty y range [0:1.5625e-14], adjusting to [-1:1]
: 
: and produce a figure without any details!!

This is a gnuplot "feature".  For this particular problem you can
avoid it by using a command like

  set zero 1e-20

before the plot command.

See the gnuplot manual/on-line help entry for set/show zero for more
information about what this does.

Perhaps this has already been fixed for the next release of gnuplot.
You might ask the comp.graphics.gnuplot newsgroup.

Thanks,

jwe