Checking if a matrix is symmetric

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Abdulelah Jo
Abdulelah Jo 2018-11-26
评论： Abdulelah Jo 2018-11-26
Hi
i want to check if the matrix is symmetric or not by using nested loops and display a certain message if it is or not. the problem is that it's displaying the message after comparing each element of the original matrix with the ones in the transposed or inversed matrix.. i want the message to be displayed after both matrices are compared!.
A = [ 2 6 9; 7 3 8; 10 11 12];
for i = 1:3
for j = 1:3
if(A(i,j) == A(j,i))
disp('true')
else
disp('false')
end
end
end

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采纳的回答

Bruno Luong
Bruno Luong 2018-11-26
disp(isequal(A,A.'))
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Walter Roberson
Walter Roberson 2018-11-26
A = [ 2 6 9; 7 3 8; 10 11 12];
for i = 1 : 1
for j = 1 : 1
fprintf(['The matrix is a' repmat('\b',isequal(A,A.')) 'symmetric!\n']);
end
end

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