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is it possible to convert second or higher order differential equation in s domain i.e. transfer function. directly how?

Asked by manoj saini on 15 Feb 2013
Latest activity Commented on by Talha Yousuf on 26 Nov 2016
is it possible to convert second or higher order differential equation in s domain i.e. transfer function...directly

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1 Answer

Answer by Azzi Abdelmalek
on 15 Feb 2013
Edited by Azzi Abdelmalek
on 16 Feb 2013
 Accepted Answer

Example
Edit
5*d3y-4d2y+10y=20*du+4u
The coefficients of your equation are
D=[5 0 -4 10]
N=[20 4]
% Your transfer function
G=tf(N,D)

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% There was an error,
5*d3y-4dy+10y=20*du+4u
5 is the coefficient of d3y
0 is the coefficient of d2y
-4 is the coefficient of dy
10 is the coefficient of y
Then
D=[5 0 -4 10]

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