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Student Support Forum: 'Using NDSolve on a set of nonlinear DEs' topicStudent Support Forum > General > "Using NDSolve on a set of nonlinear DEs"

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Tom
12/19/12 02:54am

Hi,

I don't know If this is your problem. But if you want Mathematica to solve the problem numerically I think you should tell Mathematica at which point you want the solution. As example:

If you had to solve f''(x)=-f(x), then the solution is f(x)=k*sin(x) (for every k). But, as far as I know, if Mathematica is not able to solve such an differential equation explicitly, then it can only solve such problems for special values of x (numerically), for example x=5, where the result would be k*sin(5).

Perhaps you have to tell Mathematica where you want the solution.

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Subject (listing for 'Using NDSolve on a set of nonlinear DEs')
Author Date Posted
Using NDSolve on a set of nonlinear DEs Stratonovich 12/18/12 5:20pm
Re: Using NDSolve on a set of nonlinear DEs Tom 12/19/12 02:54am
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