chap4\chap4_1ctrl.m .....\chap4_1plant.m .....\chap4_1plot.m .....\chap4_1sim.mdl .....\chap4_2ctrl.m .....\chap4_2plant.m .....\chap4_2plot.m .....\chap4_2sim.mdl .....\chap4_3ctrl.m .....\chap4_3plant.m .....\chap4_3plot.m .....\chap4_3sim.mdl .....\chap4_4ctrl.m .....\chap4_4plant.m .....\chap4_4plot.m .....\chap4_4sim.mdl .....\chap4_5ctrl.m .....\chap4_5plant.m .....\chap4_5plot.m .....\chap4_5sim.mdl chap4