It would be marvelous if J was polite enough to warn me when a result is in
all likelihood not correct, rather than blithely returning an egregiously
wrong answer.
Skip
<<<>>>
x:1.9 % 2^1024
0
1.9 %&x: 2^1024
0
1.9 % 2^1024x
|domain error
| 1.9 %2^1024
1.9 %&x: 2^1024x
19r179769313486231590772930519078902473361797697894230657273
430081157732675805500963132708477322407536021120113879871393
357658789768814416622492847430639474124377767893424865485276
302219601246094119453082952085005768838150682342462881473913
1105408272371633...
Skip Cave
Cave Consulting LLC
On Sat, Oct 7, 2017 at 12:24 PM, Skip Cave <[email protected]> wrote:
> 1.9 %&x: 2^1024x
>
> 19r179769313486231590772930519078902473361797697894230657273
> 430081157732675805500963132708477322407536021120113879871393
> 357658789768814416622492847430639474124377767893424865485276
> 302219601246094119453082952085005768838150682342462881473913
> 1105408272371633...
>
> x:1.9 % 2^1024
>
> 0
>
> 1.9 %&x: 2^1024
>
> 0
>
> 1.9 % 2^1024x
>
> |domain error
>
> | 1.9 %2^1024
>
>
> Engine: j805/j64/windows
>
> Release: commerciai/2016-12-11T08:02:16
>
> Library: 8.05.14
>
> Qt IDE: 1.5.4/5.6.2
>
> Platform: Win 64
>
> Installer: J805 install
>
> lnstaiiPath: c:/program files/j64 -805
>
>
>
> Skip Cave
> Cave Consulting LLC
>
> On Sat, Oct 7, 2017 at 10:57 AM, Skip Cave <[email protected]>
> wrote:
>
>> Doesn't happen on my system:
>>
>> 1.9 %&x: 2^1024x
>>
>> 19r179769313486231590772930519078902473361797697894230657273
>> 430081157732675805500963132708477322407536021120113879871393
>> 357658789768814416622492847430639474124377767893424865485276
>> 302219601246094119453082952085005768838150682342462881473913
>> 1105408272371633...
>>
>>
>> Engine: j805/j64/windows
>>
>> Release: commerciai/2016-12-11T08:02:16
>>
>> Library: 8.05.14
>>
>> Qt IDE: 1.5.4/5.6.2
>>
>> Platform: Win 64
>>
>> Installer: J805 install
>>
>> lnstaiiPath: c:/program files/j64 -805
>>
>>
>>
>> Skip Cave
>> Cave Consulting LLC
>>
>> On Sat, Oct 7, 2017 at 10:05 AM, 'Pascal Jasmin' via Beta <
>> [email protected]> wrote:
>>
>>>
>>>
>>> this happens in 805 too,
>>>
>>> 1.9 %&x: 2^1024x
>>>
>>>
>>>
>>> ________________________________
>>> From: Raul Miller <[email protected]>
>>> To: Beta forum <[email protected]>
>>> Sent: Saturday, October 7, 2017 8:56 AM
>>> Subject: [Jbeta] Do I need to upgrade?
>>>
>>>
>>>
>>> I was expecting a zero or a small value from this expression -
>>>
>>> instead, I got an error.
>>>
>>>
>>> 1.9%2^1024x
>>>
>>> |domain error
>>>
>>> JVERSION
>>>
>>> Engine: j806/j64/darwin
>>>
>>> Beta-6: commercial/2017-09-26T14:12:52
>>>
>>> Library: 8.06.07
>>>
>>> Qt IDE: 1.6.1/5.6.3
>>>
>>> Platform: Darwin 64
>>>
>>> Installer: J806 install
>>>
>>> InstallPath: /users/rauldmiller/applications/j64-806
>>>
>>> Contact: www.jsoftware.com
>>>
>>>
>>> (I was trying to investigate the representation of denormalized numbers.)
>>>
>>>
>>> Thanks,
>>>
>>>
>>> --
>>>
>>> Raul
>>>
>>> ----------------------------------------------------------------------
>>>
>>> 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
