Mathc matrices/03u

Valeurs propres. Vecteurs propres

A = EVector EValue EVectorT

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% Matrix 2x2 -------------

A = round(15*randn(2));    %% A matrix 2x2
A = A'*A                   %% A symetric matrix

% Eigenvalues Eigenvectors
[Evectors,Evalues] = eigs(A);

A = Evectors * Evalues * Evectors'
%%

B = EVector EValue EVectorT

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% Matrix 3x3 ---------------------

B = round(15*randn(3));      %% A matrix 3x3
B = B'*B                     %% A symetric matrix

% Eigenvalues Eigenvectors
[Evectors,Evalues] = eigs(B);

B = Evectors * Evalues * Evectors'
%%