CSR MATRIX + ARPACK #44
Description
Add support to find out the Eigenvectors and Eigenvalues of sparse matrix.
To this end use ARPACK library.
The library is here
https://www.caam.rice.edu/software/ARPACK/
- Symmetric matrix smallest eigenvalue
- Symmetric matrix largest eigenvalue
- Symmetric matrix smallest eigenvalue and eigenvector
- Symmetric matrix largest eigenvalue and eigenvector
- Generalized eigenvalue problem
- Eigenvalue and eigenvectors of generalized matrix
About ARPACK:
ARPACK is a collection of Fortran77 subroutines designed to solve large scale eigenvalue problems.
- The package is designed to compute a few eigenvalues and corresponding eigenvectors of a general n by n matrix A.
- ARPACK software is capable of solving large scale symmetric, nonsymmetric, and generalized eigenproblems from significant application areas.
- For many standard problems, a matrix factorization is not required. Only the action of the matrix on a vector is needed.
You can download the software from here : https://www.caam.rice.edu/software/ARPACK/download.html
Regards
Vikas