This is related to the question I asked several days ago,
http://jsoftware.com/pipermail/programming/2023-December/062994.html
My suggestion would be
8 (($@])#:[i.~,@]) A
1 3
Although you might want to an alternative behavior when there are
multiple matches.
LdBeth :)
>>>>> In <CAMw+KcroqQ4g=o4rkystuqvjqqqtfxpqjy38zwarncd_ttl...@mail.gmail.com>
>>>>> David Pinchbeck <dpinc...@gmail.com> wrote:
> 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
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