code\divide.m ....\example6_1.m ....\example6_2.m ....\example6_3.m ....\example6_4.m ....\example6_5.m ....\example6_6.m ....\example6_7.m ....\example6_8.m ....\getdata.m ....\main_batch.m ....\main_newff.m ....\main_seral.m ....\main_xor.m ....\student.xls code