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Integration..Constants
Posted:
Oct 30, 1996 12:29 AM


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.
I have tried to specify the value of "ao" before integrating:
In[1]:=SetAttribute[ao, Constant]
or
In[1]:=SetAttribute[ao, Protected]
or a combination of the two.
I have also tried:
In[1]:=ao/. Sign[ao]=1
To try and get a positive result. I have also tried MathCad 6.0+ and gotten the same results. It appears to be a problem for both programs. (For those that might think that I am the one with the problem, I would like to say that a tenured prof and a postdoc agreed that there is a problem with the program). If you know of a solution, or can point me in a different direction, I would greatly appreciate it. This would save me from having to contact Wolfram about his program.
  Dennis M. Winters  P.O. BOX 21215  EMORY UNIVERSITY  ATLANTA, GA 30322  dwint01@emory.edu  or winters@euch6h.chem.emory.edu 



