{"id":26437260,"url":"https://github.com/zolabar/iexfinder","last_synced_at":"2026-05-08T15:43:02.160Z","repository":{"id":45936445,"uuid":"424138887","full_name":"zolabar/IexFinder","owner":"zolabar","description":"Interactive calculation of extreme values with Python","archived":false,"fork":false,"pushed_at":"2023-07-27T08:12:46.000Z","size":617,"stargazers_count":3,"open_issues_count":3,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-06-06T06:04:23.524Z","etag":null,"topics":["calculus","extreme-values","ipywidgets","jupyter-notebook","numpy","plotly","python","sympy","voila-dashboard"],"latest_commit_sha":null,"homepage":"","language":"Jupyter Notebook","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/zolabar.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":"citation.cff","codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2021-11-03T08:07:26.000Z","updated_at":"2022-11-15T07:51:11.000Z","dependencies_parsed_at":"2025-03-18T08:33:09.880Z","dependency_job_id":"4be754bb-4147-4055-a2cc-ba1a3ee43672","html_url":"https://github.com/zolabar/IexFinder","commit_stats":null,"previous_names":[],"tags_count":3,"template":false,"template_full_name":null,"purl":"pkg:github/zolabar/IexFinder","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zolabar%2FIexFinder","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zolabar%2FIexFinder/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zolabar%2FIexFinder/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zolabar%2FIexFinder/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/zolabar","download_url":"https://codeload.github.com/zolabar/IexFinder/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zolabar%2FIexFinder/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":260326516,"owners_count":22992368,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":["calculus","extreme-values","ipywidgets","jupyter-notebook","numpy","plotly","python","sympy","voila-dashboard"],"created_at":"2025-03-18T08:29:03.982Z","updated_at":"2026-05-08T15:42:57.122Z","avatar_url":"https://github.com/zolabar.png","language":"Jupyter Notebook","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003cimg src=Figures/fig2.svg height='200' \u003e\n\n# IexFinder: Interactive Symbolic Calculation of Extreme Values\n\n[![DOI](https://zenodo.org/badge/424138887.svg)](https://zenodo.org/badge/latestdoi/424138887) Jupyter Lab: [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/zolabar/IexFinder/HEAD) Voila Web App: [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/zolabar/iexfinder/main?urlpath=voila%2Frender%2F/iexfinder_voila.ipynb)(**Binder**)\n\n\n***Zoufiné Lauer-Baré*** ([LinkedIn](https://www.linkedin.com/in/zoufine-lauer-bare-14677a77)) \u003cdiv itemscope itemtype=\"https://schema.org/Person\"\u003e\u003ca itemprop=\"sameAs\" content=\"https://orcid.org/0000-0002-7083-6909\" href=\"https://orcid.org/0000-0002-7083-6909\" target=\"orcid.widget\" rel=\"me noopener noreferrer\" style=\"vertical-align:top;\"\u003e\u003cimg src=\"https://orcid.org/sites/default/files/images/orcid_16x16.png\" style=\"width:1em;margin-right:.5em;\" alt=\"ORCID iD icon\"\u003ehttps://orcid.org/0000-0002-7083-6909\u003c/a\u003e\u003c/div\u003e\n\n## Description\n\nThe ```exFinder``` web application calculates and visualizes interactively the extreme values of multivariate functions: \n\u003cimg src=\"https://render.githubusercontent.com/render/math?math=f:\\mathbb{R}^2\\to\\mathbb{R}\"\u003e\n\nIt is based mathematically on ```SymPy``` and ```NumPy``` and graphically on ```Jupyter Notebook```, ```Plotly``` and ```Voila```. It has step by step features, based on  finding and characterizing stationary points by using the gradient and the Hessian, e.g. [[Alt, 2002]](https://link.springer.com/book/10.1007/978-3-322-84904-5). \n\nThe exFinder project is listed in the [Voila Gallery](https://voila-gallery.org/). \n\nMention this project as\n\n*Lauer-Bare, Z. (2021). IexFinder -  Interactive Symbolic Calculation of Extreme Values (Version v1.0.2) [Computer software].* https://doi.org/10.5281/zenodo.5707405\n\n\n**Usage:** Enter a function in *x* and *y* in Pythonic form into the input field and click on the update button.\n\n\u003cimg src=Figures/exFinder_usage_5.PNG \u003e\n\n\n\n## References\n\n[Alt, 2002] Alt W. Nichtlineare Optimierung: Eine Einführung in Theorie, Verfahren und Anwendungen. Vieweg+Teubner Verlag; 2002.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzolabar%2Fiexfinder","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fzolabar%2Fiexfinder","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzolabar%2Fiexfinder/lists"}