-- regards, bill ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
the amended tfrom=: <@,@[ {&.> ] ensures closure in inverted table, but this is
not the behavior of dyad { where it writes (,x) { y to ensure vector result.
Now another tfrom0=: <@[ {&.> ] or tfrom0=: {.&.>@tfrom is needed.
