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Integration question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg20966] Integration question
  • From: V Stokes <birdy00 at bu.edu>
  • Date: Wed, 1 Dec 1999 01:50:33 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Please try the following simple tests:


     Integrate[Exp[x-a],x]

then,

    Integrate[Exp[x-a],{x,-Infinity,a}]

I get the following solution (with Mathematica 3.01)

 If[a<0,1,...]

Is this the intended solution for this integral? A simple calculation
shows that this integral will evaluate to 1 for any a > 0 !

--Virgil



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