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Mimicking the TI calculator graph "trace" function
*To*: mathgroup at smc.vnet.net
*Subject*: [mg113191] Mimicking the TI calculator graph "trace" function
*From*: John Accardi <accardi at accardi.com>
*Date*: Mon, 18 Oct 2010 05:46:29 -0400 (EDT)
Hello ....
I'm trying to find the easiest way to get Mathematica to do what a TI-84
calculator does with the "trace" button on a graph. (displays x,y
coordinates at tracing cursor positions). Alternately, I could live
with having the intersection point(s) of two graphs dynamically display,
with label(s), on a plot, along with the function graphs. I know I can
do this in a table of values, but I want to see point and label on the
graph plot.
This document describes much of it, but you have to hard code the
solution point to create the point label:
http://amath.colorado.edu/computing/Mathematica/labelpoints/
(The above document contains a link to the *.nb being described.)
I guess I am looking for any code that exists where the point label is
created dynamically after a solution point is calculated and included in
the plot.
This seems like a very common thing to want to do but I cannot seem to
find anything in the archive/forum that does anything like this.
Thanks for any insights.
Gianni
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