On Mac I get the expected results
JVERSION
Engine: j902/j64avx2/darwin
Beta-i: commercial/2020-10-20T10:35:52
Library: 9.02.06
Qt IDE: 1.8.7/5.12.7(5.12.7)
Platform: Darwin 64
Installer: J902 install
InstallPath: /users/bobtherriault/j902
Contact: www.jsoftware.com
%3x (] * <.@^) 2x<.@^>:i.3
1r18 1r324 1r52488
Cheers, bob
> On Oct 25, 2020, at 14:08, 'Mike Day' via Beta <[email protected]> wrote:
>
> From the iPad again, it comes down to
> 1 % 2x
> 1r2 NB. In J901, 8, 7 etc
> 0 NB. in J902
> So does extended%extended give rational or not?
> Mike
>
> Sent from my iPad
>
>> On 25 Oct 2020, at 20:58, 'Mike Day' via Beta <[email protected]> wrote:
>>
>> OK sending with considerable effort from the laptop :
>> copy & paste from J902 session in JQt under Windows 10:
>>
>> JVERSION
>> Engine: j902/j64/windows
>> Beta-i: commercial/2020-10-20T10:09:05
>> Library: 9.02.06
>> Qt IDE: 1.8.7/5.12.7(5.12.7)
>> Platform: Win 64
>> Installer: J902 install
>> InstallPath: c:/d/j902
>> Contact: www.jsoftware.com
>> %3x (] * <.@^) 2x<.@^>:i.3
>> 0 0 0
>>
>> Best wishes
>>
>> Mike
>>> On 25 October 2020 at 20:40 Henry Rich <[email protected]> wrote:
>>>
>>>
>>> I don't get this error. I am running a post-beta-i development system.
>>>
>>> Henry Rich
>>>
>>>> On 10/25/2020 4:39 PM, 'Mike Day' via Beta wrote:
>>>> I should have mentioned that my example works ok in J901 in Windows as
>>>> well as J701 on this tablet.
>>>> Mike
>>>>
>>>> Sent from my iPad
>>>>
>>>>> On 25 Oct 2020, at 20:27, Mike Day <[email protected]> wrote:
>>>>>
>>>>> Experimenting with Euler Problem 731, I should get:
>>>>> %3(] * <.@^)2<.@^>: i.3. NB. 1/(b^(c^k).c^k) in maths notation
>>>>> 0.0555556 0.00308642 1.9052e_5
>>>>> %3x(] * <.@^)2x<.@^>: i.3. NB. Try extended nos
>>>>> 1r18 1r324 1r52488
>>>>>
>>>>> +/\%3x(] * <.@^)2x<.@^>: i.3. NB. Cum sum
>>>>> 1r18 19r324 3079r52488
>>>>>
>>>>> 23j20":,.+/\%3x(] * <.@^)2x<.@^>: i.3. Looking for repeated pattern ....
>>>>> 0.05555555555555555556
>>>>> 0.05864197530864197531
>>>>> 0.05866102728242645938
>>>>>
>>>>> Only using k=1,3 here for concise display.
>>>>>
>>>>> This is the sort of thing I see here on the iPad, and also in J901
>>>>> However, in J902 beta i, I get (can’t email from Windows just now, so
>>>>> faking it!):
>>>>>
>>>>> +/\%3x(] * <.@^)2x<.@^>: i.3.
>>>>> 0 0 0
>>>>>
>>>>> My mistake!?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Mike
>>>>>
>>>>>
>>>>> Sent from my iPad
>>>>>
>>>>>> On 25 Oct 2020, at 16:42, Henry Rich <[email protected]> wrote:
>>>>>>
>>>>>> Modern J uses a virtual block for the result of (, y), so now (+/@, y)
>>>>>> and (+/ , y) run at the same speed. A different example is needed.
>>>>>>
>>>>>> Henry Rich
>>>>>>
>>>>>>> On 10/25/2020 12:01 PM, Brian Schott wrote:
>>>>>>> Jan-Pieter,
>>>>>>>
>>>>>>> First, thanks for pointing out the link.
>>>>>>> But I am having some problems.
>>>>>>>
>>>>>>> [*******my comment 0) here is likely inappropriate in light of Henry's
>>>>>>> reply in this thread
>>>>>>> 0) Are you suggesting that some wording be added to that link? It looks
>>>>>>> to
>>>>>>> me as if you are but where?
>>>>>>> I say where because there are at least 3 different concepts treated on
>>>>>>> that
>>>>>>> page: SC, EIP, and AIP.
>>>>>>> ]
>>>>>>>
>>>>>>>
>>>>>>> 1) I am finding problems on that page that I cannot explain. For
>>>>>>> example,
>>>>>>> a) on one line discussing EIP the following is stated twice, when it is
>>>>>>> clear that the two should be different `(V0@[ V1 V2)` .
>>>>>>> b) [this comment may also be explained by Henry's reply but I don't see
>>>>>>> how]
>>>>>>> I cannot confirm the improvements suggested by the example there.
>>>>>>> Perhaps using j807 is the problem. See my session below.
>>>>>>> 9!:52''
>>>>>>> 1
>>>>>>> a =: 1000 1000 ?@$ 0 NB. it is unfortunate that the +/
>>>>>>> result
>>>>>>> suggests that a contains integers, not reals
>>>>>>> +/ , a NB. perhaps 1000 1000
>>>>>>> could be reduced to 25 25?
>>>>>>> 499960
>>>>>>> +/@, a
>>>>>>> 499960
>>>>>>> ts =: 6!:2 , 7!:2@]
>>>>>>> ts '+/ , a' NB. notice the small space usage here
>>>>>>> 0.001987 1408
>>>>>>> ts '+/@, a' NB. the time reduction is so small as to be
>>>>>>> "within statistical error"
>>>>>>> 0.001965 1536
>>>>>>> JVERSION
>>>>>>> Engine: j807/j64/darwin
>>>>>>> Release-c: commercial/2019-02-24T10:50:40
>>>>>>> Library: 8.07.26
>>>>>>> Platform: Darwin 64
>>>>>>> Installer: J807 install
>>>>>>> InstallPath: /users/brian/j64-807
>>>>>>> Contact: www.jsoftware.com
>>>>>>>
>>>>>>> On Sun, Oct 25, 2020 at 8:42 AM Jan-Pieter Jacobs <
>>>>>>> [email protected]> wrote:
>>>>>>>
>>>>>>>> I guess this is worth mentioning here:
>>>>>>>>
>>>>>>>> https://code.jsoftware.com/wiki/Vocabulary/SpecialCombinations#Assignments_In_Place_.28AIP.29
>>>>>>>>
>>>>>>>> Assignments are done in place if you use a specific form recognised by
>>>>>>>> the
>>>>>>>> interpreter.
>>>>>>>>
>>>>>>>> If you do not assign the result, or use it in a longer sentence, it
>>>>>>>> will
>>>>>>>> not be recognised, copying over the entire array, rather than updating
>>>>>>>> a
>>>>>>>> single element.
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>>
>>>>>>>> Jan-Pieter
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>> (B=)
>>>>>>> ----------------------------------------------------------------------
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>>>>>>
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