[Jprogramming] Possible bug in ! for j901

['robert therriault' via Programming]

Thanks Eric (and Henry)

I had not expected that to be corrected so quickly, nice work!

Cheers, bob

> On Jun 11, 2020, at 13:57, Eric Iverson <eric.b.iverson at gmail.com> wrote:
> 
> Bob,
> The 901 bug you report (2 ! 3x) is fixed in the latest 901. Upgrade and
> please check.
> 
> On Thu, Jun 11, 2020 at 3:25 PM 'robert therriault' via Programming <
> programming at jsoftware.com> wrote:
> 
>> It looks as if ! (Choose) in j901 does not want to accept extended
>> integers in its domain. If the arguments are equal then it will work, which
>> looks like a shortcut to the answer 1.
>> 
>>  JVERSION
>> Engine: j901/j64avx2/darwin
>> Release-e: commercial/2020-01-29T12:41:32
>> Library: 9.01.24
>> Qt IDE: 1.8.3/5.12.3
>> Platform: Darwin 64
>> Installer: J901 install
>> InstallPath: /users/bobtherriault/j901
>> Contact: www.jsoftware.com
>> 
>> 2 ! 2
>> 1
>> 2 ! 3
>> 3
>> 2 ! 3x
>> |domain error
>> | 2 !3
>> 2 ! 2x
>> 1
>> 
>> This works in j807
>> 
>>    JVERSION
>> Engine: j807/j64/darwin
>> Release-d: commercial/2019-03-18T16:07:14
>> Library: 8.07.26
>> Qt IDE: 1.7.9/5.9.6
>> Platform: Darwin 64
>> Installer: J807 install
>> InstallPath: /users/bobtherriault/j64-807
>> Contact: www.jsoftware.com
>>   2 ! 3
>> 3
>>   2 ! 3x
>> 3
>> 
>> It seems to me that the ability to handle large numbers in combinatorics
>> is useful. I have not found any documentation in Nuvoc that suggests an
>> intentional change.
>> 
>> I await illumination. :-)
>> 
>> Cheers, bob
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