0 -2 Error plotting root systems in Sage ( 2015-01-07 08:50:46 +0200 )
2 0 Error plotting root systems in Sage ( 2015-01-07 08:50:44 +0200 )
0 -2 Error plotting root systems in Sage ( 2015-01-07 05:58:56 +0200 )
2 0 Error plotting root systems in Sage ( 2015-01-07 05:58:55 +0200 )