{"id":19863648,"url":"https://github.com/sandialabs/relleno","last_synced_at":"2026-01-25T09:35:27.914Z","repository":{"id":142395580,"uuid":"234194056","full_name":"sandialabs/Relleno","owner":"sandialabs","description":"A SageMath library for jump expansions and Jacobian matrices of conservation laws and stability analysis","archived":false,"fork":false,"pushed_at":"2021-02-22T19:12:02.000Z","size":467,"stargazers_count":3,"open_issues_count":0,"forks_count":1,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-06-02T18:23:40.718Z","etag":null,"topics":["compressible-flow","scr-2422","snl-comp-science-libs","stability-analysis","symbolic-math"],"latest_commit_sha":null,"homepage":"","language":"Sage","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/sandialabs.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.md","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-01-15T23:31:22.000Z","updated_at":"2024-08-01T19:29:56.000Z","dependencies_parsed_at":null,"dependency_job_id":"7c7ff1ba-d051-4658-8f9e-de724bfe89eb","html_url":"https://github.com/sandialabs/Relleno","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/sandialabs/Relleno","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sandialabs%2FRelleno","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sandialabs%2FRelleno/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sandialabs%2FRelleno/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sandialabs%2FRelleno/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/sandialabs","download_url":"https://codeload.github.com/sandialabs/Relleno/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sandialabs%2FRelleno/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28750875,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-25T09:00:19.176Z","status":"ssl_error","status_checked_at":"2026-01-25T09:00:04.131Z","response_time":113,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["compressible-flow","scr-2422","snl-comp-science-libs","stability-analysis","symbolic-math"],"created_at":"2024-11-12T15:15:36.648Z","updated_at":"2026-01-25T09:35:27.897Z","avatar_url":"https://github.com/sandialabs.png","language":"Sage","funding_links":[],"categories":[],"sub_categories":[],"readme":"`Relleno` is a SageMath library that facilitates derivations of numerical flux functions for computational solution of conservation laws. \nIts main application has been the derivation of entropy stable flux functions for compressible gas flows. \nHowever, the fundamental library itself is quite general.\n\n\n# Clone, Install, and Test\nTo use Relleno you'll need SageMath installed on your computer (see http://www.sagemath.org/index.html).\nAfter installing SageMath, clone the `Relleno` repository:\n\n```\ngit clone https://github.com/sandialabs/Relleno.git\n```\n\nThis will create a directory named `Relleno`.\nEnter into this directory and install with the following command.\n\n```\ncd Relleno\nsage -pip install --upgrade --no-index -v .\n```\n\nTo test that the installation was successful, run the following command from the `Relleno` directory.\nThis might take up to thirty seconds or so.\n\n```\nsage Relleno/tests.sage\n```\n\n# Theory Manual\nThe `docs/Relleno.pdf` file details the theory underlying `Relleno`. 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