clc;
close();
//page no 230
//prob no. 7.3
//from ex 7.2
//v(t)=80*cos[(2*%pi*10^8*t)+20*sin(2*%pi*10^3*t)]     --eq
B=20;
delta_theta=B;   //for PM
disp(delta_theta,'The maximum phase deviation for PM is ');