Thread Subject: 2nd order differential equation

Anyone know if there's a MATLAB function that can be used to
solve 2nd order differential equations? If not, anyone know
how to go about doing that?

Thanks!

"Jill " <udmathworks@mathworks.com> wrote in message
<fgtuo3$a73$1@fred.mathworks.com>...
> Anyone know if there's a MATLAB function that can be used to
> solve 2nd order differential equations? If not, anyone know
> how to go about doing that?
>
> Thanks

ode45 and the other odeXXX solvers can do this.

"Jill " <udmathworks@mathworks.com> wrote in message <fgtuo3
$a73$1@fred.mathworks.com>...
> Anyone know if there's a MATLAB function that can be used
to
> solve 2nd order differential equations? If not, anyone
know
> how to go about doing that?
>
> Thanks!

infact, not directly. you have to rewrite the ODE in a
matrix-form:

suppose: x''=F(x,x',t)=ax'+bx+c
rewrite: y=[x, x'], y'=[0 1; b a]*y+[0; c]

HTH
Urs