You've gotten some other good answers, but, just in case: (+:@]^:[&1)3 8
Thanks, -- Raul On Tue, Aug 7, 2018 at 6:56 AM Martin Kreuzer <[email protected]> wrote: > > Hi all - > > Have been playing with the Power conjunction using this (not uncommon) example > > po2=. 3 : '+:^:y 1' NB. power of two by repeated doubling > po2 5 > 32 > > Then I have wanted to come up with a tacit version of *po2 (a monad > with no of repetions as only argument) and tried > > (+:^:])5 NB. does the doubling alright but ... > 160 > > and a number of variations of this > > (+:^:] 1)5 > |syntax error > | (+:^:]1)5 > > Q: Where should I put the start value of 1..? > > Thanks > -M > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
