Hi Mareeah,
To expand the matrix ‘alfa’ from 1x20 to 40x20, we can first declare the expanded matrix. Next, we can use the “linspace” function to make sure each column is a linspace from alfa(j) to 2*alfa(j) (40 points, as referred in the code provided above). I have attached a reference code snippet below which achieves the same-
% Expand alfa
alfa_expanded = zeros(40, 20);
for j = 1:20
alfa_expanded(:,j) = linspace(alfa(j), 2*alfa(j), 40).';
end
For more information regarding the usage of the “linspace” function in MATLAB, please refer to the documentation link below-
Finally, since the code provided above calculates ‘r0’ for each value, we can do the same on the expanded matrix outside the ‘for’ loop, as shown below-
% Compute r0
r0 = m ./ cosd(alfa_expanded/2);
I hope the above approach helps resolves your query.
