= database_cremona_ellcurve = == Description == John Cremona's huge database of elliptic curves See http://www.warwick.ac.uk/~masgaj/ftp/data/ or http://sage.math.washington.edu/cremona/INDEX.html This is an optional package, not included by default. == SPKG Maintainers == * R. Andrew Ohana == Upstream Contact == * Author: John Cremona * Email: john.cremona@gmail.com * Website: http://www.warwick.ac.uk/~masgaj/ftp/data/ == Update Instructions == At the end of either method, copy `SAGE_DATA/cremona/cremona.db` to the src directory of the spkg. === Method 1 === If the cremona database has already been installed, remove `SAGE_DATA/cremona/cremona.db`. Run {{{ sage: sage.databases.cremona.build('cremona','path/to/ecdata.tgz') }}} === Method 2 === Install the current version of the spkg, and copy the new files into a new folder. Then run {{{ sage: C = sage.databases.cremona.LargeCremonaDatabase('cremona',False) sage: C._init_from_ftpdata('path/to/said/folder',0) }}} This method is much faster, but won't include any potential fixes old entries. == Changelog == === database_cremona_ellcurve-20120302 (R. Andrew Ohana, 2 March 2012) === * #12617: Updated the tables to include all conductors up to 230000 === database_cremona_ellcurve-20120113 (R. Andrew Ohana, 14 January 2012) === * Updated the tables to include all conductors up to 220000 === database_cremona_ellcurve-20111121 (R. Andrew Ohana, 27 November 2011) === * Older versions of Sage will now revert to the 20071019.p0 version * Version number is now based off of Cremona's release of the tables * Updated the tables to include all conductors up to 210000 === database_cremona_ellcurve-20111029 (R. Andrew Ohana, 29 October 2011) === * Updated the tables to include all conductors up to 200000 * Fixed a mistake in update instructions === database_cremona_ellcurve-20110915 (R. Andrew Ohana, 15 September 2011) === * Updated the tables to include all conductors up to 190000 * Added directions on how to update database === database_cremona_ellcurve-20110809 (R. Andrew Ohana, 9 August 2011) === * Updated the tables to include all conductors up to 180000 === database_cremona_ellcurve-20110801 (R. Andrew Ohana, 1 August 2011) === * Updated the database to use SQLite3 * Updated the tables to include all conductors up to 170000 * Introduced a mercurial repository in the spkg === database_cremona_ellcurve-20071019.p0 (David Kirkby, 14th Nov 2009) === * Fix trac #7464 Remove the '-v' option to 'cp' as '-v' is not a POSIX option for 'cp' and was not implemented on Solaris. It is only to display what is actaully being copied, and so there is no need to use this GNUism. * Renamed SAGE.txt to SPKG.txt to be like other packages. * Added an upstream contact, and other data found in a typical SPKG.txt file === previous versions === * lost to history