Category:J: Difference between revisions
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J is meant to be read with the aid of a computer. J sentences are single lines and trying variations and simplifications of an expression is common practice. The first step in understanding any J sentence is to understand the data you started with and the data which resulted. When learning how a J sentence works, you can also try simpler sentences with the same data or perhaps related data.
Unless you attend an institution which has made a J interpreter available to you through your web browser (or preinstalled on your machine), if you want to see how J works you should probably [http://www.jsoftware.com/stable.htm install] a copy of J -- or you can try one of the "try me" links, below. If you want to understand how to experiment with alternative expressions you should probably
For example, the phrase <code>(+/ % #)</code> finds the average of a list of numbers.
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