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Reading coordinates from a 2D Plot

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  • Subject: [mg75729] Reading coordinates from a 2D Plot
  • From: Dr Reinhard Simonovits <Reinhard.Simonovits at>
  • Date: Wed, 9 May 2007 04:35:51 -0400 (EDT)


In previous versions of Mathematica under Windows, you could read the 
x,y-coordinates of  a point, say the min of x^2 + 5. You could 
measure the minimum by clicking on the graphics and paste it in an 
input cell for further processing.
The coordinates were also displayed in the lower left corner of the window.

With repeated steps one could get a lot of coordinates and fit them 
with e.g. NonlinearFit.

How do I do it in Mathematica 6? I need this features badly for my students.

              Dr. Reinhard Simonovits
Handelsakademie  |  Karl Franzens University
Math Department  |  Inst. for Mathematics
Grazbachgasse 71 |  Heinrichstrasse 36
               A-8010 Graz, Austria

Email: Reinhard.Simonovits at

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