I think you left out this part: find=: (#~ ] = |.&.":@>)@p:
Thanks, -- Raul On Thu, Oct 15, 2015 at 1:02 PM, Kip Murray <[email protected]> wrote: > Please read below. Forwarding is the only way I can get my awkward mailer > to send you a message with copied material! --Kip Murray > > ---------- Forwarded message --------- > From: km <[email protected]> > Date: Thu, Oct 15, 2015 at 11:44 AM > Subject: Finding prime palindromes > To: Kip Murray <[email protected]> > > > A prime palindrome is a prime which is unchanged when its decimal digits > are reversed. Write verb find below. > > p: i.40 NB. first 41 primes > 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 > 103 107 109 113 127 131 137 139 149 151 157 163 167 173 > > find i.40 NB. palindromes among the first 41 primes > 2 3 5 7 11 101 131 151 > > --Kip Murray > > Sent from my iPad > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
