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Entering constant placeholders

  • To: mathgroup at
  • Subject: [mg32328] Entering constant placeholders
  • From: "progman" <dglfl at>
  • Date: Tue, 15 Jan 2002 02:30:05 -0500 (EST)
  • Reply-to: "progman" <dglfl at>
  • Sender: owner-wri-mathgroup at

I can't seem to make this work.  When I enter the following, I get these

SetAttributes[a,b,c, Constant]

Syntax::tsntxi: "SetAttributes a,constant" is incomplete; more input is

d(ax^3 + bx^2 + cx + d)/dx

The answer should be 3ax^2+2bx+c .  I can't figure out how to tell
mathematica that a,b, & c are constants.


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