Re: Aspect Ratio question

*To*: mathgroup at smc.vnet.net*Subject*: [mg81306] Re: [mg81278] Aspect Ratio question*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Wed, 19 Sep 2007 05:18:06 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <200709180442.AAA28804@smc.vnet.net>*Reply-to*: murray at math.umass.edu

If you're really using Plot, then set AspectRatio->Automatic, e.g.: Plot[Sqrt[1 - x^2], {x, -1, 1}, AspectRatio -> Automatic] If, though, you're using ParametricPlot, then Automatic is the default value for option AspectRatio and you don't need to set it yourself. For example: ParametricPlot[{Cos[t], Sin[t]}, {t, 0, 2 Pi}] Don't even think about the physical characteristics of your display device! Steven Siew wrote: > I'm really confused about the steps needed to calculate an Aspect > Ratio for 2D ploting in mathematica. > > What I want is to plot a circle as a circle on the monitor and not as > an ellipse. > > My monitor has a physical aspect ratio of 16:10 (aka widescreen > monitor). > > My monitor has the resolution of 1280 X 800 pixels. > > What should I set the aspect ratio parameter to in Plot[] ? > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Aspect Ratio question***From:*Steven Siew <siewsk@bp.com>