2**2**2**2**2 wrong? Bug?

[Wayne Brehaut]

On Mon, 09 Jul 2007 23:51:25 -0700, "mensanator at aol.com"
<mensanator at aol.com> wrote:

>On Jul 9, 11:42?pm, Paul McGuire <p... at austin.rr.com> wrote:
>> On Jul 9, 11:21 pm, "Jim Langston" <tazmas... at rocketmail.com> wrote:> In Python 2.5 on intel, the statement
>> > 2**2**2**2**2
>> > evaluates to>>> 2**2**2**2**2
>>
>> > 200352993040684646497907235156025575044782547556975141926501697371089405955  63114
>> > 530895061308809333481010382343429072631818229493821188126688695063647615470  29165
>> > 041871916351587966347219442930927982084309104855990570159318959639524863372  36720
>>
>> <snip>
>>
>> Exponentiation is right associative, so this is the same as:
>>
>> 2**(2**(2**(2**2)))
>> 2**2**2**4
>> 2**2**16
>> 2**65536
>>
>> 2=10**0.3010, so 2**65536 is approx 10**19726
>>
>> There are 19730 digits in your answer,
>
>>>> import gmpy
>>>> n = 2**2**2**2**2
>>>> gmpy.numdigits(n)
>19729
>
>Did you count the 'L'?

numdigits(n)?

What?  'L' is a digit in Python?  I'm going back to Fortran!

wwwayne

>>so this seems to be at least in
>> the ball park.
>>
>> -- Paul
>