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Andreas Talmon
09/05/12 08:00am

Hi,

I have a problem with the DSolve[] command. Using it on a 4th order differential equation yields a complex solution. But I know that the solution is a real function.

In the attached notebook the complex solution with DSolve has the name

Subscript[\[Sigma], peel, GR, selbst][x]

The solution derived manually is real and has the name

Subscript[\[Sigma], peel, GR][x]

It must be possible to convert the symbolic complex solution to the symbolic real one but I really don't now how.

I would be happy for every advice.



Attachment: DGL_4th_Order_with_own_solution.nb, URL: ,

Subject (listing for '4th Order differential equation yields complex ...')
Author Date Posted
4th Order differential equation yields complex ... Andreas Talmon 09/05/12 08:00am
Re: 4th Order differential equation yields comp... Bill Simpson 09/06/12 12:02pm
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