what could be causing matrix dimensions must agree error
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I am trying to plot the gain as a function of frequency. i am trying to vary the frequency from 1 to 1E6, this is so i gan have a frequency range. This is not necessarily needed to solve my problem though. I am getting this error "Error using " / " Matrix dimensions must agree." at line 7 for this segment of code. Its nothing complicated i am just sure that i am doing something incorrect. I have commented out the other way i was going to go about this. so that can be ignored.
clear;
%for i from 0 to 1E8;
% f [i]= i;
c = 3^8;
frequency = 1:100:10^6;
lambda = c/frequency;
area = .1^2;
gain = (((4*pi)/lambda^2)/(area));
subplot (1,1,1)
plot (frequency,gain)
grid on
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Star Strider
2019-1-13
You need to use element-wise operations (the ‘dot operator’) in the exponentiation and division, in your lambda and gain calculations.
This works:
c = 3^8;
frequency = 1:100:10^6;
lambda = c./frequency;
area = .1^2;
gain = (((4*pi)./lambda.^2)/(area));
subplot (1,1,1)
plot (frequency,gain)
grid on
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