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MathGroup Archive 1998

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Re: How to draw an ellipse?


  • To: mathgroup@smc.vnet.net
  • Subject: [mg10369] Re: How to draw an ellipse?
  • From: "K. Nikolaj Berntsen" <berntsen@_nospam_bkm.dtu.dk>
  • Date: Mon, 12 Jan 1998 04:10:02 -0500
  • Organization: News Server at UNI-C, Danish Computing Centre for Research and Education.
  • References: <694b5p$kjs@smc.vnet.net>

Krishnan Jayakrishnan wrote:

> Does any one know how to construct an ellipse? For example an ellipse
> centered at (0,0) with intercepts at (-a,0,(a,0),(0,-b),(0,b) with
> parametric equation
> x(t) = a*cos(t)
> y(t) = b*sin(t)
> with t increasin from 0 to 2pi radians. --
> Sincerely
> Krishnan Jayakrishnan
> Systems Administrator
> Allied Geophysical Labs
> University of Houston

 ParametricPlot or ImplicitPlot is what I use To plot general ellipses.
The one you mention can be drawn quicker, drawing it as a scaled circle
(or something like that).

Nikolaj
--
-------------------------------------------------------------- | Ph.D.
stud., cand.scient.                                  | | K. Nikolaj
Berntsen                                        | | Office: Department
of Structural Engineering and Materials | |         Technical
University of Denmark                    | |         Building 118, room
152                             | |         DK-2800 Lyngby             
| | URL:    http://www.bkm.dtu.dk/~knb                         |
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