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function bool = ispsys(sys) % ISPSYS True for parameter-dependent systems % % BOOL = ISPSYS(SYS) returns 1 if SYS is a polytopic or parameter-dependent % system % % See also PSYS, PSINFO. % Author: P. Gahinet 6/94 % Copyright 1995-2004 The MathWorks, Inc. bool=(size(sys,1)>6 && size(sys,2)>1 && isnumeric(sys) && sys(1,1)==-Inf);