Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'Third-order, non-linear ODE with integral BC' topicStudent Support Forum > General > "Third-order, non-linear ODE with integral BC"

< Previous CommentHelp | Reply To Comment | Reply To Topic
Author Comment/Response
Servillo
03/31/12 10:39pm

In Response To 'Re: Third-order, non-linear ODE with integral BC'
---------
See, that's the bizarre thing is that the integral is specifically listed as I wrote it. My thought was that f needed to be written in terms of theta (i.e. Integrate[f[theta],{theta,0,1}]==1/(2*a)), however when do that, Mathematica tells me that my system is overdefined. If I type f[1] instead, it solves the system (though it doesn't give me anything meaningful).

I don't know if this will help, but the basic idea is that this integral represents a mass conservation condition on the system. I don't have a third boundary condition that I can just define, such as f[1]=0, so I have to use this integral as my third condition that the system must satisfy.

Unfortunately, I don't know if NDSolve can really handle integral boundary conditions, which is why I came here.

URL: ,

Subject (listing for 'Third-order, non-linear ODE with integral BC')
Author Date Posted
Third-order, non-linear ODE with integral BC Servillo 03/25/12 11:49pm
Re: Third-order, non-linear ODE with integral BC toen 03/31/12 01:56am
Re: Re: Third-order, non-linear ODE with integr... Servillo 03/31/12 10:39pm
< Previous CommentHelp | Reply To Comment | Reply To Topic