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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ephraim matloba 2015-3-15

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评论： Image Analyst 2020-4-12

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.

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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

在 MATLAB Online 中打开

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.

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Answer 1

Image Analyst 2015-3-15

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在 MATLAB Online 中打开

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);