PDF-Figure1:Examplesofunboundedpolyhedrathatarenotpolytopes.(left)Noextrem PDF document
0and 0suchthatx z2Pifandonlyif Geometricallythisisequivalenttomovingfromxinthedirection zuntilwerunintoaconstraintThenwecanexpressxasx x z x zThereforexisaconvexcombinations