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Matlab Transfer Function!

  1. Apr 5, 2007 #1
    I have only basic matlab skills and need to input to transfer functions into matlab to determine a closed loop transfer function! But cannot find any simple books or guides to show me how to input the functions! One of the transfer functions i wish to input is:


    Some help of the method of inputing this, would be greatly apricated!

  2. jcsd
  3. Apr 5, 2007 #2
    A=tf([1],[0.04 0.8 1])

    If you want the root locus just type in


    Your system appears to always be stable and in the LHP for all positive values of gain K.
    Last edited: Apr 5, 2007
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