
How to draw a electromagnetic wave and plot it in 3D
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    Olivia Hagedorn
 il 23 Mar 2019
  
    
    
    
    
    Commentato: CHI-HAN
 il 2 Gen 2025
            I have an equation for an electric and magentic wave. Very simply they look like  and
 and  . where A, ω, k are just constants. I want to plot these in a 3-dimensional space. I'm not sure if I even need to include the time t since I only need a snap shot at one instance in time. I have tried surface plot and fplot3 to no success. I want something that looks like:
. where A, ω, k are just constants. I want to plot these in a 3-dimensional space. I'm not sure if I even need to include the time t since I only need a snap shot at one instance in time. I have tried surface plot and fplot3 to no success. I want something that looks like: 
 and
 and  . where A, ω, k are just constants. I want to plot these in a 3-dimensional space. I'm not sure if I even need to include the time t since I only need a snap shot at one instance in time. I have tried surface plot and fplot3 to no success. I want something that looks like:
. where A, ω, k are just constants. I want to plot these in a 3-dimensional space. I'm not sure if I even need to include the time t since I only need a snap shot at one instance in time. I have tried surface plot and fplot3 to no success. I want something that looks like: 
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  Star Strider
      
      
 il 23 Mar 2019
        I’m not certain what you want.  
Try this: 
E = 2;
H = 3;
t = linspace(0, 2*pi);
omega = 2;
k = pi/2;
x = ones(size(t));
c = cos(omega*t - k*x);
figure
patch([t fliplr(t)], [c zeros(size(c))], [zeros(size(t)) zeros(size(t))], 'b')
hold on
patch([t fliplr(t)], [zeros(size(t)) zeros(size(t))], [c zeros(size(c))], 'r')
hold off
grid on
view(40, 40)
producing this figure: 

2 Commenti
  CHI-HAN
 il 2 Gen 2025
				I think E=1 H=1 in this diagram. Therefore, this is linear polarized.
But I am just qurious that (E = 2;H = 3;) then where is 0 and 1 ?
Or how do you reverse???
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