Why is my plot plotting blank?

 u = 5;
 E = 1000;
 w = [0:1:100000];
 z=1+((w*u)/E).^2 
 A = w*u/sqrt((z))

 figure
 plot(w, A); % Plot 

        % As always, label your graphs 
        xlabel('Frequency [rad/s]');
        ylabel('Amp[Pa]');
        title('Amplitude vs Frequency');
My Command Window shows no errors. So I don't understand what is wrong.

Answer 1

[KSSV]

Element by element division in A. In your case it was only a scalar.

u = 5;
 E = 1000;
 w = [0:1:100000];
 z=1+((w*u)/E).^2  ;
 A = w*u./sqrt((z)) ;  element by element division 
 figure
 plot(w, A); % Plot 
 % As always, label your graphs 
 xlabel('Frequency [rad/s]');
 ylabel('Amp[Pa]');
 title('Amplitude vs Frequency');

Answer 2

[David Goodmanson]

x