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From: Dave Maharaj on 28 Feb 2010 11:28
I'm trying to solve the following:

inits='theta1(0)=pi/4,theta2(0)=0';

dsolve('-(200*D2theta2 + 2943*cos(theta1))/(300*cos(theta2) + 200)'...
,'-(1000*D2theta1 + 2943*cos(theta1) + 8829*cos(theta1)+ 600*D2theta1*cos(theta2))/(300*cos(theta2) + 200)'...
,inits)

I get the message; Warning: Explicit solution could not be found.
Is there anyway to solve this?
From: Torsten Hennig on 28 Feb 2010 16:41
> I'm trying to solve the following:
>
> inits='theta1(0)=pi/4,theta2(0)=0';
>
> dsolve('-(200*D2theta2 +
> 2943*cos(theta1))/(300*cos(theta2) + 200)'...
> ,'-(1000*D2theta1 + 2943*cos(theta1) +
> 1) + 8829*cos(theta1)+
> 600*D2theta1*cos(theta2))/(300*cos(theta2) + 200)'...
> ,inits)
>
> I get the message; Warning: Explicit solution could
> not be found.
> Is there anyway to solve this?

Try one of the numerical interators listed under
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/ode45.shtml

Best wishes
Torsten.
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