Calculates eigenvalues and eigenvectors of a symmetric matrix

evals = cv.eigen(src)
[evals, evects, b] = cv.eigen(src)

Input

• src input matrix that must have single or double type, square size and be symmetrical (src' == src).

Output

• evals output vector of eigenvalues of the same type as src; the eigenvalues are stored in the descending order.
• evects output matrix of eigenvectors; it has the same size and type as src; the eigenvectors are stored as subsequent matrix rows, in the same order as the corresponding evals.
• b bool return value

The function cv.eigen calculates just eigenvalues, or eigenvalues and eigenvectors of the symmetric matrix src:

src * evects(i,:)' = evals(i) * evects(i,:)'

Note: Use cv.eigenNonSymmetric for calculation of real eigenvalues and eigenvectors of non-symmetric matrix.