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Topic: ode45
Replies: 2   Last Post: Mar 27, 2014 3:44 AM

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Matthew

Posts: 1
Registered: 3/26/14
ode45
Posted: Mar 26, 2014 5:00 PM
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Hello,

I'm trying to use ode45 to solve a set of differential equations.
Rp = 5;
global Rp
[t, y] = ode45('odefunctions', [.001:.001:.8], V0);

Where odefunctions is a separate m_file:

function [dydt] = odefunctions(t, y)

global Rp
Qao_current = Rp*t

dydt = ones(2,1)
dydt(1) = (Qao_current/c) - (y(1)/(Rp*c));
dydt(1) = (0/c) - (y(2)/(Rp*c));

Within odefunctions I need to define a variable thats dependent on t. This does not seem to work... and putting a loop within odefunctions does not work either... Qao_current should change with every t

Any suggestions?

Thanks!


Date Subject Author
3/26/14
Read ode45
Matthew
3/26/14
Read Re: ode45
David Stevens
3/27/14
Read Re: ode45
Torsten

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