isredundant

ISREDUNDANT Check if a constraint is redundant

 [how] = isredundant(P,row,Options)

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 DESCRIPTION
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 Check if constraint defined by f*x<=g (f=P.H(row,:), g=P.K(row)) is redundant.

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 INPUT
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 P                - Polytope
 row              - index of a row in P.H
 Options.abs_tol  - absolute tolerance
 Options.lpsolver - LP solver to be used (see help mpt_solveLP)

 Note: If Options is missing or some of the fields are not defined, the default
       values from mptOptions will be used

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 OUTPUT                                                                                                    
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 how   = 1 (TRUE) redundant
       = 0 (FALSE) non-redundant
       = 2 empty polyhedron.

 see also REDUCE