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""" 

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) 

 

References 

---------- 

.. [1] ARPACK Software, http://www.caam.rice.edu/software/ARPACK/ 

.. [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. 

 

""" 

from __future__ import division, print_function, absolute_import 

 

from .arpack import *