Oleksandr Kazymyrov <vrona.aka.ham...@gmail.com> writes:
> In manual "ZZ ?" you can find:
>
> As an inverse to "digits()", lists of digits are accepted, provided
> that you give a base. The lists are interpreted in little-endian
> order, so that entry "i" of the list is the coefficient of
> "base^i":
>
> sage: Z([3, 7], 10)
> 73
> sage: Z([3, 7], 9)
> 66
> sage: Z([], 10)
> 0
>
> But for base more than 2^64 it doesn't work. It looks stupid, because you can
> call "digits(2^64)", but not an inverse function:
> sage: a=ZZ(randint(0,2^128-1)).digits(2^64)
> sage: a
> [1154963902035838039, 8176620537326016718]
> sage: ZZ(a,2^64)
> ERROR: An unexpected error occurred while tokenizing input
> The following traceback may be corrupted or invalid
> The error message is: ('EOF in multi-line statement', (1348, 0))
>
> ---------------------------------------------------------------------------
> OverflowError Traceback (most recent call last)
> ....
> OverflowError: long int too large to convert
Thank you for the report! This is now lucky ticket #13000 -
http://trac.sagemath.org/sage_trac/ticket/13000
-Keshav
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