Discussion:  All Topics 
Topic:  Trig graphs 
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Subject:  RE: Trig graphs 
Author:  jon wilkin 
Date:  Nov 4 2006 
with the modest name of Graphing Calculator. It is available at
http://www.pacifict.com/ ,but is no longer free as the authoring team went broke
trying to produce it for free. Educational cost is $70, I think.
 
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