Purpose of the Primer

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NuVoc is the authoritative and definitive specification of the J language. The J Dictionary can also be used to learn J, but because it covers the language concisely, completely and rigorously, with more emphasis on the complex than the mundane, it does scare some of us away.

The Primer provides a kinder, gentler start for beginners. It takes you along a path in easy steps to the point where you can write an application in J. Along the way you will be introduced to all the key ideas in J by seeing them in simplified and specific contexts. The purpose of this online book is to get you up to speed where you can use NuVoc and the J Dictionary in a manner that makes you wonder why you ever bothered with this simple stuff.

You should be able to work your way through the Primer fairly quickly, and at the end you will be an entry-level J programmer. As such, you will have far more programming power at your fingertips than even the most experienced Basic or Java programmer.

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