This is from the vocabulary: The obverse (which is normally the inverse) is specified for six cases:
1. The self-inverse functions + - -. % %. |. |: /: [ ] C. p. Why is * deleted from the list? What is the inverse of * ? If that is correct, then shouldn't + be deleted from the list? 6 +inv 11 5 6 - 11 _5 In math, + and - are inverse functions. So are * and %. eIt seems to be a good idea to use the conept of inverse as it is used in conventional mathematics. However, there should be somewhere in the explanations of the vocabulary or NuVoc that how J's inverse differs from the conventional notation. Linda ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
