Optional package cunningham_tables unavailable (version 9.0)

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Peter Mueller

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Mar 12, 2020, 9:15:44 AM3/12/20
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Calling the example
from sage.rings.factorint import factor_cunningham
factor_cunningham(2^257-1)
from the docs yields the message that the Cunningham tables should be installed  via ``sage -i cunningham_tables``. Trying this, however, yields a `not found' message, and suggests to try the option `-p' instead of '-i'. This, in turn results in an error message.

-- Peter Mueller

Vincent Delecroix

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Mar 12, 2020, 11:53:48 AM3/12/20
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What is your setup?

Peter Mueller

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Mar 12, 2020, 12:15:24 PM3/12/20
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Locally compiled versions of Sage on two up-to-date Manjaro Linux machines, and the binary distribution on a Debian 9 machine. In all three cases Sage version 9.0.

Dima Pasechnik

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Mar 12, 2020, 12:32:25 PM3/12/20
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it (with -p option) does work on a recent Sage 9.1 beta.
Specfically, I got the file here:

http://www.mirrorservice.org/sites/www.sagemath.org//spkg/optional/cunningham_tables-1.0.spkg
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Dima Pasechnik

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Mar 12, 2020, 12:46:32 PM3/12/20
to sage-support, sage-devel
researching on the status of cunningham_tables spkg, one finds
it was slated to become standard, but them someone pointed out
that Brent's tables are better, and it leads to
https://trac.sagemath.org/ticket/12133
which is in "needs work" state, and links pointing to
files on a dead server.
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