Subject: Taylor approximation of a differential equation
From: Daniel Lakeland
Date: Tue, 25 Dec 2012 15:04:41 -0800
On 12/24/2012 09:59 PM, s-pfeifer at gmx.net wrote:
> But this only leads to the error: "taylor: d/dt q cannot be a variable".
> Is there a way to achieve this in Maxima without substituting the
> derivatives for new variables?
>
> Any help would be appreciated.
I'm pretty sure your best bet is to replace 'diff(q,t) with qdot or
something, then do your taylor series, and then replace qdot with
'diff(q,t). You can automate this procedure if you have to do it a lot.