PlanetMath: A Collaborative Math Encyclopedia
2025-04-21
PlanetMath is an online community dedicated to making mathematical knowledge more accessible. Its core is a collaboratively written and reviewed mathematics encyclopedia, using LaTeX for writing and LaTeXML for web rendering. Since 2018, its source code is hosted on GitHub, and Gitter channels facilitate real-time discussions, replacing the legacy forums. PlanetMath is hosted by the University of Waterloo's Faculty of Mathematics and operated by PlanetMath.org, Ltd., a 501(c)3 non-profit organization.
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