     
        
         <li> 
            <tt>x</tt> is contained in multiple polyhedra (either at the boundary or in
            strict interior if there are overlaps), tie-breaking enabled (see
            below):
            
            <tt>fval</tt> = <img src="../../../../../../fig/mpt/modules/geometry/unions/@PolyUnion/feval8.png" alt="../../../../../../fig/mpt/modules/geometry/unions/@PolyUnion/feval8.png"> vector containing the function value in the polyhedra in
            which value of the tie-b