Hi Jürgen: If my memory is (still) correct it did give SYNTAX ERROR on Sharp APL. (I recall it because I was once tasked with doing some heuristics to speed up outer product.)
Peter > On May 15, 2016, at 5:29 AM, Juergen Sauermann > <juergen.sauerm...@t-online.de> wrote: > Hi, > > even though outer product dates back to the early days of APL, if I remember > correctly then > you could only use it with scalar functions, not with mixed functions at that > time. > > Therefore I believe that ∘./ would have given a SYNTAX ERROR even in the > early days > (mainly because you would have needed nested arrays to represent the result). > > /// Jürgen
