commnicat
.........\amplitude.m
.........\ELLIPTICFILTER.m
.........\ex.m
.........\exer4.3.m
.........\matrix.m
.........\raisedcosine.m
.........\rcos.m
.........\rcos1.m
.........\sampling1.m
.........\sqrc.m
.........\squareroot.m
.........\squarerootcosine.m