mpt_evalPWA

MPT_EVALPWA Evaluates a PWA function at a given location

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 DESCRIPTION
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 Evaluates a PWA function on a given location

 USAGE:
   value = mpt_evalPWA(Pn, Fi, Gi, x0)
   [value, regions] = mpt_evalPWA(Pn, Fi, Gi, x0)

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 INPUT
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 Pn         - polyhedral partition over which the PWA function is defined
 Fi, Gi     - cell arrays containing parameters of the PWA function
 x0         - value of parameter on which to evaluate the function

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 OUTPUT                                                                                                    
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 value      - value of the PWA function at given location (if point x0 is
              contained in more than one region of Pn, "value" will be returned
              as a vector, each element corresponding to cost associated to
              every region containing x0)
 regions    - region(s) of Pn which contain(s) point x0