{"id":13599547,"url":"https://github.com/chris-greening/double-pendula","last_synced_at":"2026-01-14T10:26:21.712Z","repository":{"id":62278081,"uuid":"208172953","full_name":"chris-greening/double-pendula","owner":"chris-greening","description":"Modeling a double pendulum using Python and Lagrangian mechanics","archived":false,"fork":false,"pushed_at":"2023-10-20T21:35:54.000Z","size":16691,"stargazers_count":16,"open_issues_count":1,"forks_count":7,"subscribers_count":1,"default_branch":"master","last_synced_at":"2026-01-07T02:20:48.062Z","etag":null,"topics":["double-pendulum","hacktberfest","hacktoberfest","lagrangian-mechanics","physics","physics-simulation","python","scientific-visualization"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chris-greening.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":".github/CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":".github/CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null}},"created_at":"2019-09-13T01:06:27.000Z","updated_at":"2025-11-05T13:52:49.000Z","dependencies_parsed_at":"2023-01-21T00:03:08.862Z","dependency_job_id":null,"html_url":"https://github.com/chris-greening/double-pendula","commit_stats":{"total_commits":163,"total_committers":3,"mean_commits":"54.333333333333336","dds":"0.10429447852760731","last_synced_commit":"b7b034f3f5bda2f1b5d156b954454c82f303310e"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/chris-greening/double-pendula","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chris-greening%2Fdouble-pendula","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chris-greening%2Fdouble-pendula/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chris-greening%2Fdouble-pendula/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chris-greening%2Fdouble-pendula/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chris-greening","download_url":"https://codeload.github.com/chris-greening/double-pendula/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chris-greening%2Fdouble-pendula/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28417088,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-14T10:18:03.274Z","status":"ssl_error","status_checked_at":"2026-01-14T10:16:11.865Z","response_time":107,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: 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":["double-pendulum","hacktberfest","hacktoberfest","lagrangian-mechanics","physics","physics-simulation","python","scientific-visualization"],"created_at":"2024-08-01T17:01:06.434Z","updated_at":"2026-01-14T10:26:21.707Z","avatar_url":"https://github.com/chris-greening.png","language":"Python","funding_links":[],"categories":["Python"],"sub_categories":[],"readme":"# Double pendula\n\n\u003e  \"It simply deals with unpredictability in complex systems. The shorthand is the Butterfly Effect. A butterfly can flap its wings in Peking and in Central Park you get rain instead of sunshine.\" - Dr. Ian Malcolm, Jurassic Park\n\n\u003cimg src=\"media/300.gif\"\u003e\n300 double pendulums with nearly identical (but not quite) start conditions\n\n## Table of Contents\n* [Installation](#installation)\n* [Blog Posts](#blog-posts)\n* [Contributing](#contributing)\n* [Dependencies](#dependencies)\n* [License](#license)\n* [Support](#support)\n\n---\n\n## :computer: Installation \u003ca name=\"installation\"\u003e\u003c/a\u003e\n\nClone this repository locally to your machine:\n\n```bash\ngit clone https://github.com/chris-greening/double-pendula.git\n```\n\nand install required dependencies with:\n\n```bash\npip3 install -r requirements.txt\n```\n\n### Minimum Python version\n\nThis code requires [Python 3.5](https://www.python.org/downloads/release/python-350/) or higher.\n\n## :newspaper: Blog Posts \u003ca name=\"blog-posts\"\u003e\u003c/a\u003e\n\nCheck out blog post(s) on [DEV](https://dev.to/) for ideas and tutorials!\n\n- [Visualizing the Butterfly Effect with Python](https://dev.to/chrisgreening/visualizing-the-butterfly-effect-with-python-39m3)\n\n---\n\n## :pray: Contributing \u003ca name=\"contributing\"\u003e\u003c/a\u003e\nAll contributions, bug reports, bug fixes, documentation improvements, enhancements, and ideas are welcome!\n\nFeel free to [open an Issue](https://github.com/chris-greening/double-pendula/issues/new/choose), check out existing [Issues](https://github.com/chris-greening/double-pendula/issues), or [start a discussion](https://github.com/chris-greening/double-pendula/discussions). \n\nBeginners to open source are highly encouraged to participate and ask questions if you're unsure what to do/where to start :heart:\n\n---\n\n## :spider_web: Dependencies \u003ca name=\"dependencies\"\u003e\u003c/a\u003e\n\n- [pandas](https://pandas.pydata.org/)\n- [numpy](https://numpy.org/)\n- [matplotlib](https://matplotlib.org/)\n- [scipy](https://scipy.org/)\n\n---\n\n\n## :credit_card: License \u003ca name=\"license\"\u003e\u003c/a\u003e\nThis code operates under the [MIT](LICENSE) license.\n\n---\n\n## :grey_question: Support \u003ca name=\"support\"\u003e\u003c/a\u003e\n\nReach out to me if you want to connect or have any questions and I will do my best to get back to you\n* Email:\n  * chris@christophergreening.com\n* Twitter:\n  * [@ChrisGreening](https://twitter.com/ChrisGreening)\n* LinkedIn\n  * [Chris Greening](https://www.linkedin.com/in/chris-greening-646411139/)\n* Personal contact form: \n  * [www.christophergreening.com](https://www.christophergreening.com/contact)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchris-greening%2Fdouble-pendula","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchris-greening%2Fdouble-pendula","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchris-greening%2Fdouble-pendula/lists"}