Diagonal cross section of function z(x,y) for x=y
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I have a function as z(x,y) and I want to plot z(x,y) vs x=y. How can I plot it? Cross section of function z(x,y) for x=y
I will be glad if you help
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DGM
on 12 Mar 2022
How is the function defined? is it a MATAB function? Is this using symbolic tools? Or is it just a 2D numeric array?
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Simon Chan
on 12 Mar 2022
Easier to assign some values where x=y in function meshgrid as follows:
If the assigned values for x and y are different, then the following does not work.
x = -10:0.1:10;
y = -10:0.1:10;
A = 1; % Assume A=1
[X, Y] = meshgrid(x, y);
D = 4; T = 0; K=1;
for p = 0:(D-1)
alpha = 2*pi*p/D;
T= T + exp(1i*K*(cos(alpha)*X+sin(alpha)*Y));
end
Z = A*abs(T/D).^2;
plot(X(X==Y),Z(X==Y))
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