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MathGroup Archive 1996

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Re: Integration..Constants

  • To: mathgroup at
  • Subject: [mg5121] Re: Integration..Constants
  • From: Daniel Lichtblau <danl>
  • Date: Wed, 30 Oct 1996 22:04:47 -0500
  • Organization:
  • Sender: owner-wri-mathgroup at

Dennis Michael Winters wrote:
> I have tried several times to perform an integration(math..2.2.3)B
> similar to the following.
> In[1]:=Integrate[(ao+x)^-1 (bo^-2), x]
> The results, however, are always incorrect:
> Out[1]=-ln(-ao+x)  <---where the constant "ao" should be positive.
> Note: The above is not the exact problem and solution. It is only an
> example of the type of problem I have been having with the program.
> <....>

Not clear what you actually did, since you put something in Out[1] other
than what Mathematica returned. In any case, I get the correct result
running version 2.2. Ditto for older versions, run on a NeXT machine.

In[2]:= $Version
Out[2]= Linux 2.2 (June 3, 1995)

In[3]:=  Integrate[(ao+x)^-1 (bo^-2), x] // InputForm
Out[3]//InputForm= Log[ao + x]/bo^2

Daniel Lichtblau
Wolfram Research
danl at

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