I seem to have raised a hare in my reply to Skip's original post on 23/10.
I defined a convenient one-liner for intersection,
ix =: ([ -. -.) NB. set intersection
as it was sufficient to the discussion - I wanted to reinforce the idea
that
it was better to take the gcd of the list.
iPod?
Yes, that's also happened for me very occasionally - in J701 on the iPad.
Not under iOS12, as far as I recall, but that's probably not relevant.
So what does "open 'stdlib' " do on your iPad? I don't recognise it
as a J action... Or did you type something quite different?
Mike
On
I think the intuition here runs something like this:
1) longer code means more work
2) more work means slower implementation
But performance depends not only on the code, but on the data, and nub
will in some cases significantly reduce the amount of data. So this
winds up being one of those issu
Some extraneous vertical bars have appeared after sending the following.
Please ignore any vertical, possibly grey, bars in " |∩ | "
Partly why KEI & Roger wrote J.
Mike
On 25/10/2018 18:56, 'Mike Day' via Programming wrote:
I seem to have raised a hare in my reply to Skip's original post on
Sorry, iPad. You are right, it wouldn’t have worked even if not reversed—must
be nature’s way of warning me.
> On Oct 25, 2018, at 2:17 PM, 'Mike Day' via Programming
> wrote:
>
> iPod?
>
> Yes, that's also happened for me very occasionally - in J701 on the iPad.
>
> Not under iOS12, as far
Since you asked, Mike, I was following the instructions at:
https://code.jsoftware.com/wiki/Vocabulary/slashco , which said:
View definition(s) by entering in the J session: open'stdlib'
I finally decided that sort_z_ would been he easier approach. But I still don’t
know why /: isn’t giving me w
I'd forgotten about that script, stdlib.ijs .
The verb "open" refers to a list, Public_j_ , of shortcuts for various scripts
such as plot, viewmat, and so on. For some reason, "stdlib" isn't included. But
it's still there, both in J807 and in J701 for iPad. So, for the latter,
(sorry, boxing is
For now I've changed the text on the wiki page to clarify that `open` only
applies to JQt.
I've also added a link to the page of the User manual that describes the
Standard Library in more detail.
On Fri, Oct 26, 2018 at 12:13 PM 'Mike Day' via Programming <
[email protected]> wrote:
> I'
