TrnsZero:

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   Computes the transmission zeros of a plant
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   Form: z = TrnsZero( a, b, c, d )
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   ------
   Inputs
   ------
   a                   Plant matrix
   b                   Input matrix
   c                   Measurement matrix
   d                   Input feedthrough matrix

   -------
   Outputs
   -------
   z                   Transmission zeros

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Children:

Common: Control/SizeABCD
Common: Math/ColCompR
Common: Math/IsZero
Common: Math/RowCompU