On 2020-07-19 10:31, Brian Schott wrote:
Yes, I see the problem you are describing better now.
This behavior for powers of 2 is dissimilar with other power bases.
It suggests a flaw in the algorithm for ?. .


   ?.2^11
1826
   ?.2^12
1826
   ?.2^13
1826
NB. compared to the following
   ?.3^11
35532
   ?.3^12
212679
   ?.3^13
1275561

   #@~."1 (?."0 ,: ?.) 2^i.20
7 18
   #@~."1 (?."0 ,: ?.) 3^i.20
13 20

It's only not as obvious with powers of 3.
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