It's in Dyalog and NARS2000 documentation: http://help.dyalog.com/15.0/Content/Language/Primitive%20Functions/Index%20Generator.htm http://wiki.nars2000.org/index.php/Index_Generator
On 11 April 2017 at 02:55, Leslie S Satenstein <lsatenst...@yahoo.com> wrote: > Re Gnu APL. 1,7-1 > > Gnu apl processes ⍳ 2 5 > as > 1 1 1 2 1 3 1 4 1 5 > 2 1 2 2 2 3 2 4 2 5 > > and > > ⍳ 2 5 2 > as > 1 1 1 1 1 2 > 1 2 1 1 2 2 > 1 3 1 1 3 2 > 1 4 1 1 4 2 > 1 5 1 1 5 2 > > 2 1 1 2 1 2 > 2 2 1 2 2 2 > 2 3 1 2 3 2 > 2 4 1 2 4 2 > 2 5 1 2 5 2 > > > Since when does interval (index generator) take more than a scaler, or a > vector with rho greater than 1 ? > Where would this (above example) be used? > > Its not described in APL2, or the iso document. I am searching dyalog's > documentation and it's not there either. > > Is this an interpreter error or some undocumented extension? > > > Regards > > > * Leslie* > *Leslie Satenstein* > *Montréal Québec, Canada* > >
