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Re: [Help-gsl] ode equation definition

From: Frank Reininghaus
Subject: Re: [Help-gsl] ode equation definition
Date: Wed, 17 Dec 2008 23:12:01 +0100
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could you post your code here? Without the source, it's hard to tell what went 


On Tuesday 16 December 2008 15:58:20 Gary Paterson wrote:
> I'm trying to use the gsl to solve an ode which I can't define simply.
> My aim is to define the ode by calling inside the int (* function)
> (double t, const double y[], double dydt[], void * params) function
> other functions. These functions will need to take in as parameters t,
> and y(t).
> I've tried doing this by inside the int (* function) (double t, ...
> function converting y[0] into a double and passing the resulting value
> and the value for t to the other functions. My attempt must be wrong
> however as the result for the conversion of y[0] is nan on all but the
> first call to int (* function) (double t, ... .

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