On Thursday, August 8, 2019 at 7:16:21 AM UTC-7, Fernando Gouvea wrote:
>
> In certain contexts, I'd like to work in the power series mode up until
> the end, but display my answer in digits mode. The only way I know how to
> do this is to find the answer w and then use answer=Kd(w) to turn it into
> digits. Is there an easier way? I expected something like print a.digits()
> to work, but there's no such attribute.
>
The print-mode does not affect how the computations are done. So your work
will be done the same way no matter what print-mode is selected
To access the p-adic digits, you can use "Qp(7)(1/42).list()"
You can give a mode to the "str" method that returns a string
representation. e.g. Qp(7)(1/42).str(mode="bars") gives a presentation that
makes the digits obvious. In principle Qp(7)(1/42).str(mode="digits")
should work but it seems to miss some initialization. You could work around
that by coercing into another p-adic ring with the desired print options
set:
k1=Qp(7)
k2=Qp(7,print_mode="digits")
a=k1(2).sqrt()
print k2(a)
> Thanks,
>
> Fernando
>
> --
> =
> Fernando Q. Gouvea http://www.colby.edu/~fqgouvea
> Carter Professor of Mathematics
> Dept. of Mathematics and Statistics
> Colby College
> 5836 Mayflower Hill
> Waterville, ME 04901
>
> Deck us all with Boston Charlie,
> Walla Walla, Wash., an' Kalamazoo!
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> Don't we know archaic barrel,
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> Trolley Molly don't love Harold,
> Boola boola Pensacoola hullabaloo!
> --Walt Kelly
>
>
>
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