LFBal:

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   Perform low frequency prebalancing of a system.
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   Form:
   g = LFBal( g, gamma )
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   ------
   Inputs
   ------
   g           (:)   Plant model of type statespace
   gamma       (1,1) Value of all singular values of g(0)

   -------
   Outputs
   -------
   g           (:)   Augmented plant

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   Reference: Stevens, B.L., Lewis, F.L. Aircraft Control and Simulation
              John Wiley & Sons, 1992, pp. 466-469.
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Children:

Common: Control/SVPlot