I have been browsing through
http://www2.stetson.edu/~efriedma/numbers.html the past couple of days, I
have been using it to try my own personal problem solving to educate
myself with J
For example:
258 is a value of n so that n(n+9) is a palindrome.
I set out to find the first 10 numbers that meet this criteria and I
came up with this..
10 {. n #~ ,( ( ] = [: ". [: |. ": ) ] * +&9 ) "0 ( n =. >: i.12000 )
2 12 44 137 157 167 248 258 1639 1664
As you can see, I have already found my answers but this is just an
educational request.
I am just looking for some alternative solutions so I can read and
digest the different ways it can be done. Ideally with the use of the
@ conjuction as
I have recently been understanding the conjuction @ a lot more, as I
find the 'flow' of reading the J expression more fluent.
Thanks
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