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1""" 

2Eigenvalue solver using iterative methods. 

3 

4Find k eigenvectors and eigenvalues of a matrix A using the 

5Arnoldi/Lanczos iterative methods from ARPACK [1]_,[2]_. 

6 

7These methods are most useful for large sparse matrices. 

8 

9 - eigs(A,k) 

10 - eigsh(A,k) 

11 

12References 

13---------- 

14.. [1] ARPACK Software, http://www.caam.rice.edu/software/ARPACK/ 

15.. [2] R. B. Lehoucq, D. C. Sorensen, and C. Yang, ARPACK USERS GUIDE: 

16 Solution of Large Scale Eigenvalue Problems by Implicitly Restarted 

17 Arnoldi Methods. SIAM, Philadelphia, PA, 1998. 

18 

19""" 

20from .arpack import *