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> Until now I was not aware of the important role of > $UserBaseDirectory/Applications and did not use it. I will try that > and see if my Programming Lab can work with local files there. It's a pity (or a desaster): The Programming Lab desktop...
Sorry for confusion. I noticed that my code is nonsense and edited my original post meanwhile. I'll come back with corrected questions.
Your Replace-idea will certainly work and does not disturb anything if my expression does not contain loag(a)-log(b). I think it can even be simplified: In[275]:= v[s_] := m s + c; t3 = Assuming[{Reals, v[x] > 0}, Integrate[1/v[x], {x, s0,...
Sorry, Marco, for answering so late. Your search-hint with Google solves my little problem. Thanks a lot. Strange enough that Wolfram cannot search its own community-database. Wolfram Community guidelines tell "Under Construction" for search and...
Sorry, Michael, for answering so late. Your explanations were very helpful for me. Actually I had read the docs, but did not really understand them. And I was not really familiar with Piecewise. In particular I did not understand how the constraints...
Sorry, Daniel, for coming back so late. I was occupied with other things. Thank you very much. Your PolynomialReduce works indeed. I had pn not cleared as you assumed.
Thanks a lot, Daniel. This works perfectly. I did not try it for a large number of d[i], which would yield a large system of equations for Reduce. But I need it only for 5 to 20 indexed variables anyway.
Just for everybodies information: I had some problems with corrupted notebooks, which I could not really solve. Now I found a Wolfram tool and procedure to repair such a notebook. It does the job: See: [How do I repair corrupted notebooks using...
What is Mathematica Home Edition? I cannot find that on the Wolfram website. Anyway. What I want from Wolfram is a locally running WL-IDE that stores my programs and data locally. And does not destroy them. That's all. A pretty simple...
This does not work. It issues errors: In[444]:= SetDirectory[NotebookDirectory[]] During evaluation of In[444]:= DirectoryName::string: String expected at position 1 in...