libarpack: libarpack 3.7.0.2020.1 (Fortran eigenvalues library)  
libarpack:  
libarpack: ARPACK is a collection of Fortran77 subroutines designed to solve 
libarpack: large scale eigenvalue problems.  
libarpack: 
libarpack: http://www.caam.rice.edu/software/ARPACK/
libarpack: https://github.com/opencollab/arpack-ng
libarpack: 
libarpack: 
libarpack: 
libarpack: 

