Having trouble finding this in the wiki: I know that we can select from a
table using a boxed pair
A
0 1 2 3 4
5 6 7 8 9
10 11 12 13 14
15 16 17 18 19
20 21 22 23 24
(<1 3){A
8
How do I write a verb f to do the reverse, so that
8 f A
yields the result 1 3 ?
Thanks,
David
--
David Pinchbeck
Associate Professor of Mathematics
St. Joseph's College
Standish, ME
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm