adverb trains need parenthesizing of adverbs (outer parens below are
superfluous, but prove anonymity)
*: ` -: `^ (/.("1)(&.|:)) i.3 5
On Friday, May 3, 2019, 2:54:21 a.m. EDT, Piet de Jong <[email protected]>
wrote:
Thanks for looking at this. The problem (or maybe I misunderstand) with this
solution is that there is no real “c” in the sense that
g c y
is the required answer. That is
*:`-:`^ (/."1 &. |:) i. 3 5
(where c is the stuff in brackets) doesn’t work.
> On 3 May 2019, at 3:58 pm, 'robert therriault' via Programming
> <[email protected]> wrote:
>
> Hi Piet,
>
> I am not sure how simple it is, but combining Rob's excellent insight on
> oblique with Transpose, Under and rank 1 you get this:
>
> (*:`-:`^ /.)"1 &. |: i. 3 5
> 0 1 4 9 16
> 2.5 3 3.5 4 4.5
> 22026.5 59874.1 162755 442413 1.2026e6
>
> The transpose works in this case because the 3 gerunds are applied to each
> transposed row and then Under (&.) undoes the transpose to provide the
> results in a shape of 3 5
>
> Cheers, bob
>
>> On May 2, 2019, at 10:15 PM, Piet de Jong <[email protected]> wrote:
>>
>> Thanks! But it doesn’t appear to generalise to applying successive verbs in
>> the gerund to successive >>items<< in y.
>>
>> (I checked the dictionary re /. and it talks of “collections” of y. Not
>> sure what that means)
>>
>> For example if y is i.3 5 then I’d like the first verb in the gerund to
>> apply to the first item of y, the second verb to the second item, and so on.
>>
>> Is there a simple solution for this?
>>
>>> On 3 May 2019, at 12:35 pm, 'Rob Hodgkinson' via Programming
>>> <[email protected]> wrote:
>>>
>>> Hi Piet, not ignorant at all !
>>>
>>> Try using oblique (an obscure feature is that the u in u/. can be a gerund,
>>> in which case it is evoked cell wise);
>>>
>>> g=. *: ` -: `^
>>> y=. 3 1 0
>>> g /. y
>>> 9
>>> 0.5
>>> 1
>>>
>>> Found in Section 15 of https://www.jsoftware.com/books/pdf/brief.pdf
>>> <https://www.jsoftware.com/books/pdf/brief.pdf>.
>>>
>>> HTH, Regards Rob
>>>
>>>> On 3 May 2019, at 10:59 am, pietdion <[email protected]> wrote:
>>>>
>>>> Hopefully not an ignorant question.
>>>>
>>>> Am looking for a simple (tacit, non complicated) construction (verb?
>>>> adverb? conjunction?) “c" that takes a gerund and applies the successive
>>>> verbs in the gerund to successive items.
>>>>
>>>> A simple example is
>>>>
>>>> g=. *: ` -: `^
>>>> y=. 3 1 0
>>>> g c y
>>>> 9 0.5 1
>>>>
>>>> What “c” achieves this for arbitrary gerunds g's and y’s?
>>>>
>>>> I realise this can be done in a variety of explicit ways and with the
>>>> agenda construct. All I can come up with is intricate constructions.
>>>> Looking for something simple and direct. Seems to have a lot of uses.
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