A Traveling Wave by Making an Animation in MATLAB

clc %clears the command window<br /> clear %clears variables<br /> %Variables:<br /> %Eo wave amplitude (V/m)<br /> %f frequency (Hz)<br /> %omega angular frequency (rad/s)<br /> %t time snapshot<br /> %c speed of light<br /> %z position<br /> %E Electric Field Intensity<br /> %B phase constant (1/m)<br /> %phi phase constant (s)<br /> %phir phase constant (radians)<br /> %lambda wavelength<br /> (m)<br /> %Initial Values of Variables:<br /> f=1000;<br /> phi=0;<br /> c=2.998e8;<br /> lambda=c/f;<br /> t=1;<br /> phir=phi*pi/180;<br /> Eo=1;<br /> B=2*pi/lambda;<br /> omega=2*pi*f;<br /> z=0:4*lambda/100:4*lambda;<br /> E=Eo*cos(omega*t-B*z+phir);<br /> plot(z,E)<br /> axis([0 4*lambda -2*Eo 2*Eo])<br /> grid<br /> xlabel('z(m)')<br /> ylabel('E(V/m)')<br /> pause<br /> t=0:1/(40*f):1/f;<br /> for n=1:40;<br /> E=Eo*cos(omega*t(n)-B*z+phir);<br /> plot(z,E)<br /> axis([0 4*lambda -2*Eo 2*Eo])<br /> grid<br /> title('General Wave Equation');<br /> xlabel('z(m)');<br /> ylabel('E(V/m)');<br /> M(:,1)=getframe;<br /> end

After that I run it from the command window. I give three figures these are in different time to
see properly the wave is travelling.