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I am trying to learn J and one huge problem I’m running into is I don’t know what all the predefined operators are or where to find them. It took me way too long to figure out the | is both the remainder function(when it dyadic) but when its used monadic it gets absolute value or magnitude. Does any one know where a list of all the operators that J defines by default could be found?
You may be looking for the J Vocabulary, although trying to read its documentation on monadic vs. dyadic
|is greek to me. (Disclaimer: I am not a J programmer)