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AspectRatio -> 1 vs AspectRatio ->1.25

• To: mathgroup at smc.vnet.net
• Subject: [mg122747] AspectRatio -> 1 vs AspectRatio ->1.25
• From: John Accardi <johnaccardi at comcast.net>
• Date: Wed, 9 Nov 2011 06:25:37 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com

Goal: Plot both y = x and y = -x such that then intersect visually at
90 degrees.

Intuitively, AspectRatio -> 1 should do this but it takes
AspectRatio -> 1.25 to accomplish this.

Am I missing something?  Why 1.25 and not 1?

Example:

<< Graphics`ImplicitPlot`; ImplicitPlot[{7 x^2 - 6 Sqrt[3] x y +
     13 y^2 - 16 == 0, ((x^2)/2^2) + ((y^2)/2^2) == 1, y == x,
   y == -x}, {x, -3, 3}, AspectRatio -> 1.25]

Produces the desired plot using AspectRatio -> 1.25.

Thanks for any insights.

• Follow-Ups:
  • Re: AspectRatio -> 1 vs AspectRatio ->1.25
    • From: DrMajorBob <btreat1@austin.rr.com>