IntervalLinearAlgebra

Linear algebra done rigorously

https://github.com/juliaintervals/intervallinearalgebra.jl

Science Score: 54.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • CITATION.cff file
    Found CITATION.cff file
  • codemeta.json file
    Found codemeta.json file
  • .zenodo.json file
  • DOI references
    Found 3 DOI reference(s) in README
  • Academic publication links
  • Committers with academic emails
    1 of 8 committers (12.5%) from academic institutions
  • Institutional organization owner
  • JOSS paper metadata
  • Scientific vocabulary similarity
    Low similarity (15.3%) to scientific vocabulary

Keywords

interval-arithmetic linear-algebra numerics

Keywords from Contributors

matrix-exponential sciml primitives interface composibility base arrays automatic-differentiation zonotope sets
Last synced: 6 months ago · JSON representation ·

Repository

Linear algebra done rigorously

Basic Info
  • Host: GitHub
  • Owner: JuliaIntervals
  • License: mit
  • Language: Julia
  • Default Branch: main
  • Homepage:
  • Size: 1.84 MB
Statistics
  • Stars: 38
  • Watchers: 6
  • Forks: 11
  • Open Issues: 13
  • Releases: 7
Topics
interval-arithmetic linear-algebra numerics
Created almost 5 years ago · Last pushed over 1 year ago
Metadata Files
Readme Contributing License Citation

README.md

| Pkg Info | Build status | Documentation | Citation | Contributing | |:------------:|:----------------:|:-----------------:|:------------:|:----------------:| |versionlicense: MIT|CIcodecov|docs-stabledocs-dev|bibtexzenodo| contributions guidelines|

Overview

This package contains routines to perform numerical linear algebra using interval arithmetic. This can be used both for rigorous computations and uncertainty propagation.

If you use this package in your work, please cite it as

@software{ferranti2021interval, author = { Luca Feranti and Marcelo Forets and David P. Sanders }, title = {IntervalLinearAlgebra.jl: linear algebra done rigorously}, month = {9}, year = {2021}, doi = {10.5281/zenodo.5363563}, url = {https://github.com/juliaintervals/IntervalLinearAlgebra.jl} }

Features

Note: The package is still under active development and things evolve quickly (or at least should)

  • enclosure of the solution of interval linear systems
  • exact characterization of the solution set of interval linear systems using Oettli-Präger
  • verified solution of floating point linear systems
  • enclosure of eigenvalues of interval matrices
  • verified computation of eigenvalues and eigenvectors of floating point matrices

Installation

Open a Julia session and enter

julia using Pkg; Pkg.add("IntervalLinearAlgebra")

this will download the package and all the necessary dependencies for you. Next you can import the package with

julia using IntervalLinearAlgebra

and you are ready to go.

Documentation

  • STABLE -- Documentation of the latest release
  • DEV -- Documentation of the current version on main (work in progress)

The package was also presented at JuliaCon 2021! The video is available here and the slides here

JuliaCon 2021 video

Quickstart

Here is a quick demo about solving an interval linear system.

```julia using IntervalLinearAlgebra, LazySets, Plots

A = [2..4 -1..1;-1..1 2..4] b = [-2..2, -1..1]

Xenclose = solve(A, b) polytopes = solve(A, b, LinearOettliPrager())

plot(UnionSetArray(polytopes), ratio=1, label="solution set", legend=:top) plot!(IntervalBox(Xenclose), label="enclosure") ```

IntervalMatrices.jl

Contributing

If you spot something strange in the software (something doesn't work or doesn't behave as expected) do not hesitate to open a bug issue.

If have an idea of how to make the package better (a new feature, a new piece of documentation, an idea to improve some existing feature), you can open an enhancement issue.

If you feel like your issue does not fit any of the above mentioned templates (e.g. you just want to ask something), you can also open a blank issue.

Pull requests are also very welcome! More details in the contributing guidelines

The core developers of the package can be found in the #intervals channel in the Julia slack or zulip, links to join the platforms can be found here. Come to chat with us!

References

An excellent introduction to interval linear algebra is J. Horácek, Interval Linear and Nonlinear Systems, 2019, available here

See also the complete list of references for the concepts and algorithms used in this package.

Related packages

Acknowledgment

The development of this package started during the Google Summer of Code (GSoC) 2021 program for the Julia organisation. The author wishes to thank his mentors David Sanders and Marcelo Forets for the constant guidance and feedback. During the GSoC program, this project was financially supported by Google.

Owner

  • Name: JuliaIntervals
  • Login: JuliaIntervals
  • Kind: organization

Citation (CITATION.bib)

@software{ferranti2021interval,
author = {
            Luca Feranti and
            Marcelo Forets and
            David P. Sanders
         },
title  = {IntervalLinearAlgebra.jl: linear algebra done rigorously},
month  = {9},
year   = {2021},
doi    = {10.5281/zenodo.5363563},
url    = {https://github.com/juliaintervals/IntervalLinearAlgebra.jl}
}

GitHub Events

Total
  • Issues event: 1
  • Watch event: 2
  • Pull request event: 1
  • Fork event: 1
Last Year
  • Issues event: 1
  • Watch event: 2
  • Pull request event: 1
  • Fork event: 1

Committers

Last synced: 9 months ago

All Time
  • Total Commits: 112
  • Total Committers: 8
  • Avg Commits per committer: 14.0
  • Development Distribution Score (DDS): 0.295
Past Year
  • Commits: 3
  • Committers: 2
  • Avg Commits per committer: 1.5
  • Development Distribution Score (DDS): 0.333
Top Committers
Name Email Commits
lucaferranti 4****i 79
jorgepz j****z@f****y 18
Jorge Pérez Zerpa 4****z 6
Marcelo Forets m****s@g****m 4
Isaia Nisoli i****i@g****m 2
Daniel Karrasch d****h@p****e 1
Benoît Legat b****t@g****m 1
CompatHelper Julia c****y@j****g 1
Committer Domains (Top 20 + Academic)

Issues and Pull Requests

Last synced: 6 months ago

All Time
  • Total issues: 37
  • Total pull requests: 68
  • Average time to close issues: about 2 months
  • Average time to close pull requests: 6 days
  • Total issue authors: 10
  • Total pull request authors: 8
  • Average comments per issue: 2.24
  • Average comments per pull request: 2.1
  • Merged pull requests: 61
  • Bot issues: 0
  • Bot pull requests: 5
Past Year
  • Issues: 2
  • Pull requests: 1
  • Average time to close issues: N/A
  • Average time to close pull requests: N/A
  • Issue authors: 2
  • Pull request authors: 1
  • Average comments per issue: 0.5
  • Average comments per pull request: 0.0
  • Merged pull requests: 0
  • Bot issues: 0
  • Bot pull requests: 0
Top Authors
Issue Authors
  • lucaferranti (27)
  • jorgepz (2)
  • Kolaru (1)
  • mforets (1)
  • orkolorko (1)
  • IlPreteRosso (1)
  • wlad-svennik (1)
  • adrienbanse (1)
  • JuliaTagBot (1)
  • haloinca (1)
Pull Request Authors
  • lucaferranti (52)
  • github-actions[bot] (5)
  • jorgepz (4)
  • orkolorko (3)
  • KristofferC (2)
  • mforets (1)
  • dkarrasch (1)
  • blegat (1)
Top Labels
Issue Labels
enhancement (19) documentation (8) bug (5) meta (2) PILS :beer: (2) brainstorming (2) infrastructure (1)
Pull Request Labels
PILS :beer: (2)

Packages

  • Total packages: 1
  • Total downloads:
    • julia 7 total
  • Total dependent packages: 0
  • Total dependent repositories: 0
  • Total versions: 7
juliahub.com: IntervalLinearAlgebra

Linear algebra done rigorously

  • Versions: 7
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Downloads: 7 Total
Rankings
Dependent repos count: 9.9%
Forks count: 16.2%
Stargazers count: 21.4%
Average: 21.6%
Dependent packages count: 38.9%
Last synced: 6 months ago

Dependencies

.github/workflows/CI.yml actions
  • actions/cache v1 composite
  • actions/checkout v2 composite
  • codecov/codecov-action v1 composite
  • julia-actions/julia-buildpkg v1 composite
  • julia-actions/julia-processcoverage v1 composite
  • julia-actions/julia-runtest v1 composite
  • julia-actions/setup-julia v1 composite
.github/workflows/CompatHelper.yml actions
.github/workflows/TagBot.yml actions
  • JuliaRegistries/TagBot v1 composite
.github/workflows/docscleanup.yml actions
  • actions/checkout v2 composite