Given a square matrix M of odd dimensions (3 by 3.5 by 5 or larger in general):

Question

Given a square matrix M of odd dimensions (3 by 3.5 by 5 or larger in general): Write a MATLAB function [centerdiamond] = centerdiamond(M) to make zero the elements of the matrix as shown in the example. The rest of the entries in the matrix should remain unchanged. You should preserve the original matrix. Use any method. Your code should work in general with any square matrix of odd dimensions. 1 -3 2 4 2 5 7 8 9 5 3 2 4 6 3 6 8 2 1 3 3 3 3 3 3 Becomes: 1 -3 0 4 2 5 0 8 0 5 0 2 4 6 0 6 0 2 0 3 3 3 0 3 3 1 -3 2 4 2 5 3 5 7 8 9 5 3 2 3 2 4 6 3 4 1 6 8 2 1 3 5 4 3 3 3 3 3 6 3 2 2 2 2 2 2 7 3 5 6 1 4 6 2 Becomes: 1 -3 2 0 2 5 3 5 7 0 9 0 3 2 3 0 4 6 3 0 1 0 8 2 1 3 5 0 3 0 3 3 3 0 3 2 2 0 2 0 2 7 3 5 6 0 4 6 2

Explanation / Answer

function [res]=SquareMatrix()
%if the values have diferent sizes or classes replace [] with {}
sm=input('Enter the dimesion : ');
x=(sm+1)/2;
A = magic(sm)
%A(logical(eye(size(A)))) = 0
[nRows,nCols] = size(A);
A(x:(nRows+1):nRows*nCols) = 0
A(nRows:x:nRows*nCols) = 0
A(nCols:x:x) = 0
%SE=strel('diamond',sm)
end

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