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Daniel
10/23/11 12:28pm

I'm having the following problem:

1) I define a function using an ordinary differential equation (in the file I use the function l which is simply the identity). Everything seems to work fine.

2) Then I use the previous function to define a new ordinary differential equation (ODE). Now things do not work! In my file I define the function m as m'[x]=l[m[x]], m[0]=1, which should be simply the exponential, but I get the error "NDSolve::ndnum: Encountered non-numerical value for a derivative at x == 0." What happened?

The point is not to get the exponential (I'm working on a more complex example, but have the same issue), but rather to get the graph of the second function m.

Thanks!


Attachment: Untitled-3.nb, URL: ,

Subject (listing for 'Nested differential equations')
Author Date Posted
Nested differential equations Daniel 10/23/11 12:28pm
Re: Nested differential equations Peter Pein 10/24/11 2:45pm
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