ff =: 13 : '% +: y'
ff 4
0.125
gg =: 13 : '(%+:)y'
gg 4
0.5
hh=: 13 :'%@+:y'
hh 4
0.125
5!:4 <'ff'
-- [:
--+- %
L- +:
5!:4 <'gg'
-- %
--+- +:e
5!:4 <'hh'
-- %
-- @ -+- +:
Sometimes you get the double of the reciprocal and other times the
reciprocal of the double.
Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of km
Sent: Sunday, October 14, 2012 6:35 PM
To: [email protected]
Subject: Re: [Jprogramming] another example of 'under'
Experiment with
f =: 3 : '% +: y'
g =: 3 : '(% +:)y'
Kip Murray
Sent from my iPad
On Oct 14, 2012, at 1:31 PM, Keith Park <[email protected]> wrote:
> Does this mean that hooks and forks are excluded from explicit
definitions?
>
> On Sun, Oct 14, 2012 at 2:54 AM, Linda Alvord
<[email protected]>wrote:
>
>> Kip, Your response made me compare the use of 3 and 13.
>>
>> f=: 13 :'%+/%y'
>> g=: 3 :'%+/%y'
>>
>> f 2 4
>> 1.33333
>> g 2 4
>> 1.33333
>>
>> f
>> [: % [: +/ %
>> g
>> 3 : '%+/%y'
>>
>>
>> What I like best are the trees when I'm lost in the forest!
>>
>> 5!:4 <'f'
>> -- [:
>> +- %
>> --+ -- [:
>> L----+- / --- +
>> L- %
>>
>> 5!:4 <'g'
>> -- 3
>> -- : -+- ,:'%+/%y'
>>
>>
>> Linda
>>
>>
>> ----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of km
>> ent: Sunday, October 14, 2012 12:09 AM
>> To: [email protected]
>> Subject: Re: [Jprogramming] another example of 'under'
>>
>> Why don't you just do
>>
>> pr =: 3 : '%+/%y'
>>
>> ?
>>
>> Kip Murray
>>
>> Sent from my iPad
>>
>>
>> On Oct 13, 2012, at 5:55 PM, Keith Park <[email protected]> wrote:
>>
>>> To find the value of resistors in parallel one takes the reciprocal
>>> of the sum of the reciprocals. So I would like to write a verb to
>>> do just that. *pr=:%+/% *But that, of course, doesn't work. So my
>>> question is "is there a way of avoiding unwanted hooks and forks?"
>>>
>>> On Fri, Oct 5, 2012 at 8:20 AM, Keith Park <[email protected]> wrote:
>>>
>>>> Thanks!
>>>>
>>>>
>>>> On Thu, Oct 4, 2012 at 10:14 PM, Raul Miller
>> <[email protected]>wrote:
>>>>
>>>>> In the sentence:
>>>>>
>>>>> +/&.:% resistances
>>>>>
>>>>> the phrase +/&.:% is a verb which finds parallel resistance.
>>>>>
>>>>> --
>>>>> Raul
>>>>>
>>>>> On Thu, Oct 4, 2012 at 9:19 PM, Keith Park <[email protected]> wrote:
>>>>>> To parallel a number of resistors the expression * %+/% *does
>>>>>> the
>> job.
>>>>>> How could one make an equivalent verb?
>>>>>>
>>>>>> On Wed, Sep 26, 2012 at 12:38 PM, Boyko Bantchev
>>>>>> <[email protected]>
>>>>> wrote:
>>>>>>
>>>>>>> On 26 September 2012 15:39, Henry Rich <[email protected]> wrote:
>>>>>>>> +&.% is the operation for combining parallel electrical
>>>>>>>> +resistances,
>>>>>>> another
>>>>>>>> example that immediately demonstrates the associativity.
>>>>>>>
>>>>>>> Indeed! I had the vague feeling I know this formula from
>>>>>>> somewhere else but it evaded me where.
>>>>>>>
>>>>>>>> (w:h) .................
>>>>>>>
>>>>>>> The above is a mistake, of course. I should have said h:w, or
>>>>>>> place rectangles one above the other instead.
>>>>>>> ----------------------------------------------------------------
>>>>>>> --
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>> ---------------------------------------------------------------------
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>>
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>> http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
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