Matlab question

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I want a matlab code to draw the root locus for a characteristic equation of a transfer function of unity feedback, also what is the range of K that keeps the system stable , here is the characteristic equation:

s^5+600s^4+50000s^3+ks^2+24ks+80k=0
please help, thanks in previous
 

MATLABdude

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I want a matlab code to draw the root locus for a characteristic equation of a transfer function of unity feedback, also what is the range of K that keeps the system stable , here is the characteristic equation:

s^5+600s^4+50000s^3+ks^2+24ks+80k=0
please help, thanks in previous
The Control Toolbox rlocus function:
http://www.mathworks.com/access/helpdesk/help/toolbox/control/ref/rlocus.html [Broken]

...And a brief tutorial on its use:
http://www.engin.umich.edu/group/ctm/rlocus/rlocus.html
 
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