Thanks. Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Raul Miller
Sent: Monday, April 15, 2013 11:03 AM
To: Programming forum
Subject: Re: [Jprogramming] Table of Verbs
A=:>:i.2 2
F=: 2 2$ '+/';'|:';'|.';'-/ .*'
([:$"."1)(>"0 F)(,"1)2 2 1$'A'
2 2 2 2
([:$".)"1(>"0 F)(,"1)2 2 1$'A'
2 0
2 2
2 2
0 0
So it's about the relevance of those parenthesis.
9!:3]6
$@"."1
($@".)"1
([:$"."1)
[: $ ("."1)
([:$".)"1
([: $ ".)"1
You need $ to be modified by "1
Does this make sense?
Thanks,
--
Raul
9!:3]5
On Mon, Apr 15, 2013 at 9:58 AM, Linda Alvord <[email protected]> wrote:
> Maybe this is a clearer explanation of my question.
>
> A=:>:i.2 2
> f=: 2 2$ '+/';'|:';'|.';'-/ .*'
> "."1 (>"0 f)(,"1)2 2 1$'A'
> 4 6
> 0 0
>
> 1 3
> 2 4
>
>
> 3 4
> 1 2
>
> _2 0
> 0 0
> <"2 "."1 (>"0 f)(,"1)2 2 1$'A'
> ┌───┬────┐
> │4 6│1 3 │
> │0 0│2 4 │
> ├───┼────┤
> │3 4│_2 0│
> │1 2│ 0 0│
> └───┴────┘
>
> ($@"."1)(>"0 f)(,"1)2 2 1$'A'
> 2 0
> 2 2
>
> 2 2
> 0 0
>
> NB.($"."1)(>"0 f)(,"1)2 2 1$'A' is a domain error
>
> ([:$"."1)(>"0 f)(,"1)2 2 1$'A'
> 2 2 2 2
>
> Why, if u@v y ↔ u v y , are the two final results different?
>
> Linda
>
>
>
> -----Original Message-----
> From: [email protected] [mailto:programming-
> [email protected]] On Behalf Of Linda Alvord
> Sent: Monday, April 15, 2013 4:39 AM
> To: [email protected]
> Subject: Re: [Jprogramming] Table of Verbs
>
> (>"0 f)(,"1)2 2 1$'A'
> +/ A
> |: A
>
> |. A
> -/ .*A
>
>
> (>"0 f)(,"1)2 2 1$'A'
> +/ A
> |: A
>
> |. A
> -/ .*A
>
> If u@v y ↔ u v y shouldn't these two agree?
>
>
> ($@"."1)(>"0 <mailto:$@> f)(,"1)2 2 1$'A'
> 2 0
> 2 2
>
> 2 2
> 0 0
> n
>
> ($"."1)(>"0 f)(,"1)2 2 1$'A'
> |domain error
> | ($"."1)(>"0 f)(,"1)2 2 1$'A'
>
>
> This is also different.
>
> ([:$"."1)(>"0 f)(,"1)2 2 1$'A'
> 2 2 2 2
>
> The padding covers up the fact that:
>
> $+/A
> 2
> $|:A
> 2 2
> $|.A
> 2 2
> $-/ .*A
> The final result is empty. I can understand that dealing with the
> different shapes is a problem. I'm bothered by the different results.
>
> Linda
>
> -----Original Message-----
> From: [email protected] [mailto:programming-
> [email protected]] On Behalf Of Linda Alvord
> Sent: Monday, April 15, 2013 3:38 AM
> To: [email protected]
> Subject: Re: [Jprogramming] Table of Verbs
>
>
> A=:i.2 2
> <"2 "."1 (>"0 f)(,"1)2 2 1$'A'
> ----T----┐
> │2 4│0 2 │
> │0 0│1 3 │
> +---+----+
> │2 3│_2 0│
> │0 1│ 0 0│
> L---+-----
>
> <"2 "."1 (>"0 f)(,"1)2 2 1$'B'
> --------T-----┐
> │9 12 15│0 3 6│
> │0 0 0│1 4 7│
> │0 0 0│2 5 8│
> +-------+-----+
> │6 7 8 │0 0 0│
> │3 4 5 │0 0 0│
> │0 1 2 │0 0 0│
> L-------+------
>
>
> This is getting closer to the answer. Linda
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Linda
> Alvord
> Sent: Sunday, April 14, 2013 12:15 PM
> To: [email protected]
> Subject: Re: [Jprogramming] Table of Verbs
>
> You just need to exclude the extra zeros somehow.
>
> A=:>:i.2 2
> f=: 2 2$ '+/';'|:';'|.';'-/ .*'
> "."1 (>"0 f)(,"1)2 2 1$'A'
> 4 6
> 0 0
>
> 1 3
> 2 4
>
>
> 3 4
> 1 2
>
> _2 0
> 0 0
>
> Linda
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Raul
> Miller
> Sent: Sunday, April 14, 2013 11:45 AM
> To: Programming forum
> Subject: Re: [Jprogramming] Table of Verbs
>
> Paper and pencil is a powerful tool of thought. I have yet to see an
> adequate replacement in any computing environment.
>
> --
> Raul
>
> On Sun, Apr 14, 2013 at 10:41 AM, km <[email protected]> wrote:
>> It would be nice if there were a simple way to transform your T into U :
>>
>> U =: 2 2 $ +/ ; |: ; |. ; -/ . *
>> U i. 2 2
>> +---+---+
>> |2 4|0 2|
>> | |1 3|
>> +---+---+
>> |2 3|_2 |
>> |0 1| |
>> +---+---+
>> U i. 3 3
>> +-------+-----+
>> |9 12 15|0 3 6|
>> | |1 4 7|
>> | |2 5 8|
>> +-------+-----+
>> |6 7 8 |0 |
>> |3 4 5 | |
>> |0 1 2 | |
>> +-------+-----+
>> U
>> 2 2 $ +/ ; |: ; |. ; -/ .*
>>
>> P.S. I probably should have said "One of Ken's handwritten notes for
> Linda".
>>
>> --Kip
>>
>> Sent from my iPad
>>
>>
>> On Apr 14, 2013, at 9:40 AM, Dan Bron <[email protected]> wrote:
>>
>>> I wasn't wanting any behavior; I was just answering your question.
>>> Is
> there something else you wanted, having read Ken's paper (i.e. some
> other question than how to make a table of verbs in J)?
>>>
>>> -Dan
>>>
>>> Please excuse typos; composed on a handheld device.
>>>
>>> On Apr 14, 2013, at 9:00 AM, km <[email protected]> wrote:
>>>
>>>> Is this the behavior you want?
>>>>
>>>> T =: 2 2 $ +/`|:`|.`(-/ .*)
>>>> T i. 2 2
>>>> 2
>>>> T i. 3 3
>>>> 2
>>>> T
>>>> +-------+---------------+
>>>> |+-+---+||: |
>>>> ||/|+-+|| |
>>>> || ||+||| |
>>>> || |+-+|| |
>>>> |+-+---+| |
>>>> +-------+---------------+
>>>> ||. |+-+-----------+|
>>>> | ||.|+-------+-+||
>>>> | || ||+-+---+|*|||
>>>> | || |||/|+-+|| |||
>>>> | || ||| ||-||| |||
>>>> | || ||| |+-+|| |||
>>>> | || ||+-+---+| |||
>>>> | || |+-------+-+||
>>>> | |+-+-----------+|
>>>> +-------+---------------+
>>>>
>>>> --Kip
>>>>
>>>> Sent from my iPad
>>>>
>>>>
>>>> On Apr 14, 2013, at 8:36 AM, Dan Bron <[email protected]> wrote:
>>>>
>>>>> 2 2 $ +/`|:`|.`(-/ .*)
>>>>>
>>>>> Please excuse typos; composed on a handheld device.
>>>>>
>>>>> On Apr 14, 2013, at 8:24 AM, km <[email protected]> wrote:
>>>>>
>>>>>> One of Ken's notes shows a "table of verbs". A two by two
>>>>>> example in J might be
>>>>>>
>>>>>> +/ |:
>>>>>>
>>>>>> |. -/.*
>>>>>>
>>>>>> How would you implement such a table in J?
>>>>>>
>>>>>> --Kip Murray
>>>>>>
>>>>>> Sent from my iPad
>>>>>>
>>>>>>
>>>>>> On Apr 13, 2013, at 11:53 PM, "Linda Alvord"
>>>>>> <[email protected]>
> wrote:
>>>>>>
>>>>>>> Here are some copies of notes that Ken made over the years.
>>>>>>>
>>>>>>>
>>>>>>> http://www.jsoftware.com/jwiki/KenIversonNotes-LindaAlvord
>>>>>>>
>>>>>>> Linda
>>>>>> -----------------------------------------------------------------
>>>>>> -
>>>>>> ---- For information about J forums see
>>>>>> http://www.jsoftware.com/forums.htm
>>>>> ------------------------------------------------------------------
>>>>> -
>>>>> --- For information about J forums see
>>>>> http://www.jsoftware.com/forums.htm
>>>> -------------------------------------------------------------------
>>>> -
>>>> -- For information about J forums see
>>>> http://www.jsoftware.com/forums.htm
>>> --------------------------------------------------------------------
>>> -
>>> - For information about J forums see
>>> http://www.jsoftware.com/forums.htm
>> ---------------------------------------------------------------------
>> - For information about J forums see
>> http://www.jsoftware.com/forums.htm
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>
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>
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