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All Linux lovers, and supporters of open source code and free software, in the Kanto area (or anywhere else) are invited to attend the next Tokyo Linux Users Group meeting. Membership is open to anyone. There are currently no membership dues or entrance fees.

TLUG meetings are traditionally small and unstructured (VERY CASUAL). Most of the benefit of the meeting comes from chatting with other Linux users and having informal discussions.

As a general rule, the Technical Meetings are held on the 2nd Saturday of odd-numbered months and the Nomikai Meetings are usually held on the 2nd Friday of even-numbered months. There are, of course, exceptions to this rule, so it is best to keep an eye on the mailing list, or check back here for date/venue changes as the date approaches.

Technical Meeting


October 11, 2014 (Saturday)


14:00-17:00 (doors open 13:30)


Groupon Japan
Sumitomo Fudosan Shibuya First Tower 5F
1-2-20 Higashi
Shibuya-ku, Tokyo 150-0011



Introduction to Functional Programming: Hands-On with Racket (by Travis Cardwell)

Travis will give an interactive class on the basics of functional programming using Racket, a dialect of Scheme. Please install Racket (not Minimal Racket) onto a laptop and bring it with you to the meeting!

Adventures in Tail Call Optimization (by Travis Cardwell)

Tail call optimization is a feature of a programming language (compiler or interpreter) that is essential for writing efficient recursive functions. Travis will explain tail call optimization and then show its (mis)use in various programming languages, including some that do not support it.

Discussion: Presentation Wish List

What kind of topics would you like to see at a future TLUG technical meeting? Travis will chair a discussion where we create a wish list, which will later be posted to the mailing list so that any member can pick a topic that they know about and share their knowledge at future meetings.


After the presentations we will go for drinks somewhere in Shibuya

Other items on the agenda
  1. Introduction of new members
  2. News about Linux/Open Source, general announcements, Q&A
  3. Auction (bring any gear that would would like to donate to TLUG)

Contact Info

For directions or information before the meeting, call:

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