Runge Kutta Method

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hello all dear

please help me
can solve this Example By Simulation With matlab
 

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Svein
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can solve this Example By Simulation With matlab
I am not quite sure of your parameters. As far as I can make out your equation is [itex]h''+\frac{1}{r}h'=0 [/itex]. Now I wonder: Is r a constant? If so, just integrate and get [itex] h'+\frac{1}{r}h=C[/itex] (C is a constant) and from there [itex]h(x) = C_{2}+C\cdot x + C_{1}e^{\frac{-x}{r}} [/itex]. Nom determine the constants to fit your constraints.
 

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