Re: LSODE Question - External Inputs?

[damian.harty]

Hmm, I'm becoming baffled with the included code not being there thing. I
just pasted it in as plain text last time, and I could see it in my e-mail
and from inside Nabble...

Anyway, I think you are understanding what I'm trying to do and I get the
non-constant calling interval with lsode. 

In principle I thought it wouldn't be any bother to get my function to
return more than one variable but what with the anonymous function and
ISTAGE and MSG variables I can't really work out what the syntax is to
actually achieve it.

Inside the file EqMotion.m I have

function [xdot, ISTATE, MSG] = EqMotion (x,t,m,k,c,u,udot,t_vector)
 ...
 Fx=k*(u_now-x(1))+preload
 ...
endfunction

If I add xdot(3)=Fk into it then lsode protests about a dimensional
mismatch.

And inside one_dof.m I have

[x, ISTATE,MSG] = lsode (@ (x,t) EqMotion ((x,t,m,k,c,u,udot,t_vector), x0,
t);

So how do I modify the function definition and call to pass back Fk? I want
to put it on the left hand side but lsode protests again...

Thanks in advance,

Damian


And 

-----
Senior Research Fellow - Vehicle & System Dynamics
Coventry University
United Kingdom
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