Welcome to the OpenMath website. OpenMath is an extensible standard for representing the semantics of mathematical objects. If you haven't heard about it before you might want to consult the overview.

• November 4th 2008: The OpenMath 2 CDs can also be browsed and discussed in the wiki now.
• October 28th 2008: To support the reviewing and maintenance of the Content Dictionaries for OpenMath 3, there is now a special wiki at wiki.openmath.org, where they can be browsed and discussed. The OpenMath 3 developers can also edit.
• June 25th 2007: The Business meeting of the OpenMath Society starts the discussion process for a new version of the OpenMath standard with the goal of aligning with the content fragment of the new MathML3 standard under development by the Math Working Group at W3C. Discussions will be public on the OM3 Mailing list.
• June 25th 2007: The Business meeting of the OpenMath Society elects a new President (Michael Kohlhase), Secretary (Olga Caprotti), CD Editor (James Davenport), and Web Officer (Paul Libbrecht).
• June 19th 2007: The programme 8th OpenMath Workshop, June 25-26, Linz, Austria is public
• July 09 2006: The OpenMath web-site is now hosted by DFKI GmbH. The site is now built using a script, please send comments and requests to Paul Libbrecht since potentially many old URLs are not honoured anymore.
• August 16 2005: LeActiveMath Release 3 is now available. ActiveMath is a web-based intelligent learning environment for mathematics.
• June 08 2005: Back online!
• July 28 2004: Slides available from 10 years of OpenMath workshop, Helsinki May 21-22.
• July 27 2004: Update to OpenMath - Guidelines for Tool Developers.
• July 16 2004 OpenMath 2 published.
• July 16 2004 OpenMath 2 CD Collection published.
• May 11 2004: Sixth draft of OpenMath 2 published.
• May 11 2004: Programme announced for 10 years of OpenMath workshop in Helsinki from May 21-22.
• April 27 2004: Test release of OM2 CDs published.
• April 27 2004: Test release of OM to presentation MathML stylesheets published.
• April 07 2004: Fifth draft of OpenMath 2 published.
• February 21 2004: Second announcement of 10 years of OpenMath workshop in Helsinki from May 21-22.
• February 10 2004: Preliminary announcement of 10 years of OpenMath workshop in Helsinki from May 21-22.
• February 6 2004: Online OpenMath Validation page installed
• December 1 2003: Proceedings of Bremen OpenMath Workshop published.
• November 24 2003: Fourth draft of OpenMath 2 published.
• November 05 2003: Third draft of OpenMath 2 published.
• October 31 2003: Second draft of OpenMath 2 published.
• October 13 2003: OpenMath Thematic Network workshop in Bremen, November 7-8.
• October 13 2003: First public draft of OpenMath 2 published.
• September 26 2003: Experimental release of RELAX NG schema for OpenMath.
• September 25 2003: Update to OpenMath - Guidelines for Tool Developers.
• September 10 2003: The electronic proceedings of the Mathematics on the Semantic Web workshop are available.
• September 2003: The first release of the Foc library for certified computer algebra uses OpenMath as an export format.