Write a function file that takes as input a matrix A, and tests whether or not the matrix is (a) square, and (b) diagonally dominant, reporting the answers on the screen. Show that your code is correct by testing it for the matrix in question 2, as w
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Write a function file that takes as input a matrix A, and tests whether or not the matrix is (a) square, and (b) diagonally dominant, reporting the answers on the screen. Show that your code is correct by testing it for the matrix in question 2, as well as for cases where the matrix is not diagonally dominant, and not square.
3 个评论
Kagiso Solomon
2020-4-12
Can I have a code showing how test for a matrix if is a square and a diagonally dominant
Image Analyst
2020-4-12
Kasigo: Try this:
m = zeros(3, 3, 3, 3);
if length(unique(size(m))) == 1 % Works for any number of dimensions of matrix (2-D, 3-D, 4-D, etc.)
fprintf('Array is square.\n');
else
fprintf('Array is NOT square.\n');
end
Surely a smart guy like you can take the definition from Wikipedia: Diagonally_dominant_matrix and do the code.
回答(1 个)
Image Analyst
2015-3-15
Functions that may help you: size(), warndlg(), sprintf(), inputdlg(), fprintf(), helpdlg().
Hints:
message = sprintf('The value is %f', theValue);
uiwait(helpdlg(message));
errorMessage = sprintf('This array is not square!\nIt has %d rows and %d columns', rows, columns);
uiwait(warndlg(errorMessage));
fprintf('%s\n', errorMessage);
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