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Code Listing by Ramin Shamshiri

Code 1-3 of 3   

DC motor Control using lag compensation and PID
To customize this code you just need to:
1- Change the values of DC motor constants
2- Determine settling time, PO% and SSE and Change the zeros of lag compensation
3- Tune the gains of PID controller

This program creates Routh-Hurwitz array from coefficients of the characteristic equation and check if the system is stable or not.
======Example 6.2. Page 363, Dorf, 11th edition ======
Checking the stability of q(s)=s^3 +s^2 + 2s...

au'(x)+bu"(x)=0 for 0<=x<=d
BC: u(0)=0 and u(d)=h
Finding an approximate solution to the following BVP using 16 elements of equal length.
u'(x)-u"(x)=0 : 0<=x<=1
BC: u(0)=0 and u(1)=1