Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!samsung!usc!elroy.jpl.nasa.gov!decwrl!ucbvax!hplabs!hp-pcd!hpcvra!billw
From: billw@hpcvra.CV.HP.COM (William C Wickes)
Newsgroups: comp.sys.handhelds
Subject: Re: HP 48sx 'Q' weirdness
Message-ID: <21580029@hpcvra.CV.HP.COM>
Date: 15 Mar 90 23:19:53 GMT
References: <1990Mar13.140026.409@hellgate.utah.edu>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 8

The precision of ->Q is controlled by the current floating-point display
format.  See p. 136 in the manual.

I can't tell what your plotting problem is from your description, but
it sounds like you have selected POLAR plot type, when you are trying
to plot a conic section.  The latter is a quadratic in two variables, so
one or the other may be undefined when polar plotting.  In CONIC type
plots, the system supplies values for both variables.