An introduction to function rank
Robert Bernecky · ACM SIGAPL APL Quote Quad · 1987
This paper gives a simple introduction to the concepts of Function Rank and the Rank Operator as they are defined in SHARP APL, and presents examples of their use. It shows the benefits, both in language design and in practice, of these concepts. Comparisons are made with other APL implementations, which do not use these concepts.