|   | 1 |  initial version  | 
Try print(mat.kernel().matrix()) if you want to see it as a matrix.
|   | 2 |  No.2 Revision  | 
Try print(mat.kernel().matrix()) if you want to see it its basis as a matrix.
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.