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Trac #16313: easy-to-fix mistake in the stein-watkins optional databa…
…se docs {{{ Hi William, I just downloaded the sage version of the Stein-Watkins database of (a subset of) the elliptic curves of conductor < 10^8, because I need a supply of small curves with large rational torsion subgroups. I looked in sage/local/share/stein_watkins/format.txt and it says that the torsion subgroup is given as follows: torsion_subgroup - n or nx, where n means Z/nZ and nx means Z/2Z x Z/2nZ. But in the actual tables, nx seems to indicate Z/2Z x Z/nZ (instead of 2nZ), because the values that appear are 2x, 4x, 6x, and 8x. I hope all is well with you! Thanks --- -- Everett }}} We simply need the updated `format.txt` from [http://modular.math.washington.edu/ecdb/] New '''upstream package''': [http://boxen.math.washington.edu/home/jdeme yer/spkg/database_stein_watkins-20110713.tar.gz] URL: http://trac.sagemath.org/16313 Reported by: was Ticket author(s): Jeroen Demeyer Reviewer(s): Volker Braun
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