MATLAB: I= 1 Undefined function ‘circulant’ for input arguments of type ‘double’. Error in generator (line 194) A11 = circulant(a11,1);

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i= 1 Undefined function 'circulant' for input arguments of type 'double'. Error in generator (line 194) A11 = circulant(a11,1); anyone can help me for discovering this error, really I have tried my best to run my code unfortunately it shows me above errors, what can I do?

Best Answer

The circulant function is not an inbuilt MATLAB function. There are several circulant functions available for you to download from MATLAB FEX, e.g.:

https://www.mathworks.com/matlabcentral/fileexchange/22858-circulant-matrix

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MATLAB: [Laplacian function in Matlab2017] Undefined function ‘laplacian’ for input arguments of type ‘double’.

I suspect you're trying to call this function. If so the input must be a graph object, not simply an adjacency matrix. Create a graph object using A then pass that graph object into laplacian.

MATLAB: How to create block circulant matrix

How about the following?

% For simple example
n = 3;
m = 2;
% Create n-by-n circulant matrix
B_block = gallery('circul',1:n)';
% Create nm-by-nm block circulant matrix
B_all = repmat(B_block,m);

Best Answer

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MATLAB: [Laplacian function in Matlab2017] Undefined function ‘laplacian’ for input arguments of type ‘double’.

MATLAB: How to create block circulant matrix

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