Solving ODE with final condition

Jamin / Ilwon — Wed, 04 Nov 2009 13:42:42 -0500

I have a quick question.
I am trying to solve an ODE with final condition
How do I do this?
A simple example is
df/dx = f.
t = [0,10]
and f(t_f) = 5*exp(10)

If it was initial condition, I would do
f = ode45(@function,tspan,f0)
with properly defined function.

But I do not know how to solve ode with final condition.

Thank you for your help

Re: Solving ODE with final condition

Bruno Luong — Wed, 04 Nov 2009 14:40:20 -0500

"Jamin / Ilwon" <jamitwidme@gmail.com> wrote in message <9e5b5bf4-b35d-4133-a16f-47aa2c74a306@p32g2000vbi.googlegroups.com>...
> I have a quick question.
> I am trying to solve an ODE with final condition
> How do I do this?
> A simple example is
> df/dx = f.
> t = [0,10]
> and f(t_f) = 5*exp(10)
>
> If it was initial condition, I would do
> f = ode45(@function,tspan,f0)
> with properly defined function.
>

Reverse the time, i.e., rewrite your ODE after changing the variable r := t_f - t;

Bruno

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Solving ODE with final condition

Re: Solving ODE with final condition