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  1. In mathematica, how to find infinitesimal generator for partial differential equation using command "X[n,{x,y},{u,h},2]"? 2.What is * in this command "CharacterizeEq[*]" in sym package? and how can I solve the overdetermined equation by using sym commands in mathematica?
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Maybe mathematica.stackexchange.com is a better place for your question. – András Bátkai Jun 16 2012 at 18:12

closed as off topic by Felipe Voloch, Chris Godsil, Michael Renardy, Dan Petersen, Will Jagy Jun 16 2012 at 21:02

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