On 10/15/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > NB. The verb taking bitstrings to signed integers, (0 1 -> 1 _1): > > bs =: -@<:@+: > > NB. Its inverse verb, (1 _1 -> 0 1), is: > > sb =: -:@>:@-
I have not digested all of your post yet, but I thought I should note some alternatives for these: bs1=: _1 ^ ] sb1=: bs1 inv sb2=: _1 ^. ] bs2=: sb2 inv Of course, yours are invertible as well... FYI, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
