isstabilizable

STABILIZES Decides if a given controller is stabilizable

   result = isstabilizable(ctrl)

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 DESCRIPTION
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 Returns 1 if a given explicit controller is stabilizable, i.e. it drives ALL
 system states/outputs to a given references. Returns 0 if stability of the
 closed-loop system cannot be determined (this means that the closed-loop
 system may, or may not be stable).

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 INPUT
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 ctrl   - MPT controller (MPTCTRL object)

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 OUTPUT                                                                                                    
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 result - 1 if the controller is stabilizable, 0 if no stability guarantees
          can be given