CHAP4 .....\EX_4_38.M .....\EX_4_39.M .....\EX_4_40.M .....\EX_4_41.M .....\EX_4_42.M .....\INTEGRND.M .....\INTEGRND3.M .....\MYFUN.M .....\MYODEFUN.M .....\RIGID.M