scipy.linalg.eigvals

scipy.linalg.eigvals(a, b=None, overwrite_a=0)

Compute eigenvalues from an ordinary or generalized eigenvalue problem.

Find eigenvalues of a general matrix:

a   vr[:,i] = w[i]        b   vr[:,i]

Parameters:

a : array, shape (M, M)

A complex or real matrix whose eigenvalues and eigenvectors will be computed.

b : array, shape (M, M)

Right-hand side matrix in a generalized eigenvalue problem. If omitted, identity matrix is assumed.

overwrite_a : boolean

Whether to overwrite data in a (may improve performance)

Returns:

w : double or complex array, shape (M,)

The eigenvalues, each repeated according to its multiplicity, but not in any specific order.

Raises LinAlgError if eigenvalue computation does not converge :

See also

eigvalsh

eigenvalues of symmetric or Hemitiean arrays

eig

eigenvalues and right eigenvectors of general arrays

eigh

eigenvalues and eigenvectors of symmetric/Hermitean arrays.