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Running APL Traditionally a commercial language, there are now quite a few implementations available to download for free without feature limitations, and several of these can be tried online without installing anything.
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Running APL ∙ Try APL online

Introduction to APL
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Taking up a new programming language can be a daunting task, but APL is actually very easy to learn. A few introductory guides have been created to help you in the process.

Tutorials ∙ Syntax Who uses APL? APL has gained traction among both hobbyists and and real-world application developers. There are active user groups all around the globe, many of these hold regular in-person meet-ups. There is also a popular online APL chat room.
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Case studies

Contributing APL Wiki is an online open-content collaborative knowledge base; that is, a voluntary association of individuals and groups working to develop a common knowledge resource. The structure of the project allows anyone with an Internet connection to alter its content. Contributing
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Examples APL's terseness means that substantial programs are expressible in a small space, relative to many other programming languages. Here are some examples:
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Conway's "Game of Life"
John Scholes is famous for the following implementation of Conway's "Game of Life":

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More examples
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