Eigenvalue solver using iterative methods.

Find k eigenvectors and eigenvalues of a matrix A using the Arnoldi/Lanczos iterative methods from ARPACK [1],[2]_.

These methods are most useful for large sparse matrices.

  • eigs(A,k)
  • eigsh(A,k)


[1]ARPACK Software,
[2]R. B. Lehoucq, D. C. Sorensen, and C. Yang, ARPACK USERS GUIDE: Solution of Large Scale Eigenvalue Problems by Implicitly Restarted Arnoldi Methods. SIAM, Philadelphia, PA, 1998.

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