Now I have a new problem: why=: 13 :'x + 10*y'/|. 1 2 3 4 5 erase names 'x' 1 why 12345 x |value error: x
What is x in why ? -----Original Message----- From: programming-boun...@jsoftware.com [mailto:programming-boun...@jsoftware.com] On Behalf Of Aai Sent: Monday, January 02, 2012 5:42 AM To: Programming forum Subject: Re: [Jprogramming] Binary representation without #: or #. On 02-01-12 11:21, Linda Alvord wrote: > This was a while ago, but how about a simple J version: > > brila=: 13 :'([:(++:)/|.)"1 y' > brila > ([: (+ +:)/ |.)"1 > n=:5 3$ 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 > n > 0 0 0 > 0 0 1 > 0 1 0 > 0 1 1 > 1 0 0 > brila n > 0 1 2 3 4 > > I'm still puzzled by how it works: #. 1 0 1 0 1 0 1 85 13 :'x + 2*y'/ |. 1 0 1 0 1 0 1 85 or 13 :'x + +: y'/ |. 1 0 1 0 1 0 1 85 Simple J(?) 13 :'x + +: y' [ + [: +: ] or concise: (++:) Base 10 example: 13 :'x + 10*y'/ |. 1 2 3 4 5 12345 (+10&*)/ |. 1 2 3 4 5 12345 -- Met vriendelijke groet, @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
