Mathc matrices/03t

Valeurs propres. Vecteurs propres

EValue = EVectorT A EVector

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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)

Evalues = Evectors' * A * Evectors
%%

EValue = EVectorT B EVector

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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)

Evalues = Evectors' * B * Evectors
%%