Seems to be a combination of having more than 31 leading 2's and the magic 
length of 64 items in the argument :-)

Cheers, bob

    ?. (30#2),34#64
0 0 0 1 0 0 0 0 1 1 0 1 1 1 0 1 0 1 1 1 1 1 1 0 0 1 0 0 1 1 54 30 39 63 23 28 
21 14 18 32 21 13 19 23 16 37 16 56 52 14 51 1 22 14 26 63 13 37 54 2 30 16 5 30
   ?. (31#2),33#64
0 0 0 1 0 0 0 0 1 1 0 1 1 1 0 1 0 1 1 1 1 1 1 0 0 1 0 0 1 1 0 30 39 63 23 28 21 
14 18 32 21 13 19 23 16 37 16 56 52 14 51 1 22 14 26 63 13 37 54 2 30 16 5 30
   ?. (32#2),32#64
0 1 0 1 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 1 0 
1 1 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1
   ?. (33#2),31#64
0 1 0 1 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 1 0 
1 1 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1
   ?. (33#2),30#64
1 1 1 0 1 0 0 0 1 1 1 1 0 1 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 1 0 0 52 44 43 35 
59 43 11 11 18 47 3 11 42 49 0 19 27 3 21 20 33 33 49 63 60 42 47 33 33 8

> On Dec 17, 2015, at 9:40 AM, 'Pascal Jasmin' via Programming 
> <[email protected]> wrote:
> 
> ?.  2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 
> 2 2 2 2 2 2 2 2 2 2 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16
> 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1 0 1 1 1 0 1 0 1 1 1 1 0 
> 1 1 1 1 0 0 1 1 1 8 9 6 8 14 7 12 9 1 15 2 15 3 13 3
> 
> ?. 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 
> 2 2 2 2 2 2 2 2 2 2 2 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16
> 0 1 0 1 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 1 
> 0 1 1 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1
> 
> 
> one less leading 2 in first example.  47 leading 2s, correct result.  48 
> leading 2s and everything is 2.
> 
> 
> ----- Original Message -----
> From: Raul Miller <[email protected]>
> To: Programming forum <[email protected]>
> Sent: Thursday, December 17, 2015 12:28 PM
> Subject: Re: [Jprogramming] bug in ?
> 
> Consider
>   ?.2 2 2 32
> 0 1 0 18
> 
> Thanks,
> 
> -- 
> Raul
> 
> 
> On Thu, Dec 17, 2015 at 12:13 PM, 'Pascal Jasmin' via Programming
> <[email protected]> wrote:
>> 
>> 
>> 
>> ?. 16 # 2 2 2 16
>> 
>> 
>> result is same as
>> 
>> ?. 16 # 2 2 2 2
>> 
>> ignores the request for 0-15 range random numbers.
>> 
>> 
>> ----- Original Message -----
>> From: Raul Miller <[email protected]>
>> To: Programming forum <[email protected]>
>> Sent: Thursday, December 17, 2015 12:10 PM
>> Subject: Re: [Jprogramming] bug in ?
>> 
>> On Thu, Dec 17, 2015 at 11:49 AM, 'Pascal Jasmin' via Programming
>> <[email protected]> wrote:
>>> ?. 16 # 2 2 2 16
>>> 0 1 0 1 1 0 0 1 1 1 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 
>>> 1 0 1 1 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1
>>> 
>>> 
>>> ?. 16 # 3 2 2 16
>>> 0 2 1 0 2 1 1 1 2 1 0 2 1 2 1 2 1 0 1 1 1 1 1 1 0 0 1 0 0 1 1 0 0 1 1 1 0 1 
>>> 0 0 0 1 1 1 1 0 1 0 8 4 14 3 1 6 14 10 15 13 5 6 2 14 0 5
>>> 
>>> The last 16 numbers in the first example should match the 2nd.
>> 
>> Why do you say that?
>> 
>> Thanks,
>> 
>> --
>> Raul
>> 
>> 
>> 
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> 
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