MATLAB: How to convert from functions to matrix

functionsmatrix

I hope to make matrix about functions such as y=sinx
In other words, y=sinx functions' graph will be corresponded to m x n matrix.
For example, when I have a 300 x 200 matrix with a origin of (150,1), I want to call the value of the path through which the sin function passes in this matrix one.
how to do it?
Thanks

Best Answer

Are you trying to do something like this
M = zeros(300, 500);
cols = 1:size(M,2);
rows = floor(150-100*sin(cols/10));
idx = sub2ind(size(M), rows, cols);
M(idx) = 1;
imshow(M)
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