MATLAB: Norm of A = [2 3; 1 -1] not equal to sqrt(15) MATLABnorm Let A = [2 3; 1 -1]. norm(A) gives 3.6180 but shouldn't it equal sqrt(15) ~= 3.8730? Any idea why it is like this? Best Answer norm(A)=sqrt(maximum eigenvalue of A'*A)You want norm(A,'fro'), I guess.Best wishesTorsten. Related SolutionsMATLAB: Normalization cell array [1 -1] oh I see that you are mixing cell arrays and arrays. With your feature structure, to access the -9 of your first line, you need to do:features{1}(1)So, with your structure, if you want to continue that way, you should use this code:% the normalisation function for 1 arrayfnom = @(v) [(v(1:end-1) - min(v(1:end-1)))/(max(v(1:end-1))-min(v(1:end-1))), v(end)];% apply your function on features cell arrayfeatures = cellfun(fnom, features, 'UniformOutput', false) MATLAB: Eigenvalues and orthonormal eigenvectors Yes there is. Look at the eig function. Related QuestionHow does matlabs eigs normalise eigenvectorsSqrt symbol into uitable
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