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Need help in matlab is it possible to inverse a Matrix involve unknown?

  1. Apr 15, 2009 #1
    I need to find the transfer function a system equation and it is in the form

    [x/y]=[A]^-1

    x is input, y is out

    [A] is a 2x2 matrix in the form of

    A=[1+s 2
    3 4+s ]

    s is the laplace tranform function

    Is it possible to output the inverse of [A] in matlab even it involve s?

    I know I can inverse a 2x2 matrix by hand but I can't inverse a 4x4 matrix.

    Cheers.
     
  2. jcsd
  3. Apr 15, 2009 #2

    MATLABdude

    User Avatar
    Science Advisor

    As far as I know, not without the symbolic toolbox. Maple or Mathematica or Mathcad (or my old TI-89) can, however.
     
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