https://github.com/andreasnoack/eiscor.jl

Julia wrapper of the Fortran library for efficiently solving structured matrix eigenvalue problems using unitary core transformations
https://github.com/andreasnoack/eiscor.jl

Last synced: 19 days ago
JSON representation

Julia wrapper of the Fortran library for efficiently solving structured matrix eigenvalue problems using unitary core transformations

• Host: GitHub
• URL: https://github.com/andreasnoack/eiscor.jl
• Owner: andreasnoack
• License: other
• Created: 2014-11-25T02:43:46.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2016-11-15T03:01:50.000Z (almost 8 years ago)
• Last Synced: 2024-10-11T14:51:44.162Z (27 days ago)
• Language: Julia
• Size: 48.8 KB
• Stars: 0
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
# EiSCor

A Julia wrapper of the Fortran library [eiscor](https://github.com/jaurentz/eiscor)

## Installation:

```julia

julia> Pkg.clone("https://github.com/andreasnoack/EiSCor.jl")

julia> Pkg.build("EiSCor")

```

## Example:

```julia

julia> using EiSCor

julia> H = eye(5)[[5,1:4],:]

5x5 Array{Float64,2}:

 0.0  0.0  0.0  0.0  1.0

 1.0  0.0  0.0  0.0  0.0

 0.0  1.0  0.0  0.0  0.0

 0.0  0.0  1.0  0.0  0.0

 0.0  0.0  0.0  1.0  0.0

julia> eigfact(EiSCor.UnitaryHessenbergMatrix(H))[:values]

5-element Array{Complex{Float64},1}:

 -0.809017-0.587785im

 -0.809017+0.587785im

  0.309017-0.951057im

  0.309017+0.951057im

       1.0+0.0im

julia> eigfact(EiSCor.UnitaryHessenbergMatrix(H))[:vectors]

5x5 Array{Float64,2}:

 -0.632456   1.33749e-16  -0.195469   0.601492    0.447214

  0.511667  -0.371748     -0.632456  -3.05458e-5  0.447214

 -0.19544    0.601501     -0.19541   -0.60151     0.447214

 -0.19544   -0.601501      0.511685  -0.371723    0.447214

  0.511667   0.371748      0.511649   0.371773    0.447214

```