Revision history [back]

I am not sure about you exact question, but does the following solve your problem:

sage: M[:3].columns() + M[3:].columns()
[(0, 3, 4),
 (0, 1, 4),
 (5, 5, 6),
 (3, 4, 2),
 (4, 5, 7),
 (2, 4, 5),
 (7, 6, 8),
 (8, 6, 9)]

I am not sure about you exact question, but does the following solve your problem:

sage: M[:3].columns() + M[3:].columns()

leads to :

[(0, 3, 4),
 (0, 1, 4),
 (5, 5, 6),
 (3, 4, 2),
 (4, 5, 7),
 (2, 4, 5),
 (7, 6, 8),
 (8, 6, 9)]

I am not sure about you your exact question, but does the following solve your problem:

M[:3].columns() + M[3:].columns()

leads to :

[(0, 3, 4),
 (0, 1, 4),
 (5, 5, 6),
 (3, 4, 2),
 (4, 5, 7),
 (2, 4, 5),
 (7, 6, 8),
 (8, 6, 9)]

I am not sure about your exact question, but does the following solve your problem:

A = M[:3].columns() + M[3:].columns()
M[3:].columns() ; A

leads to :

[(0, 3, 4),
 (0, 1, 4),
 (5, 5, 6),
 (3, 4, 2),
 (4, 5, 7),
 (2, 4, 5),
 (7, 6, 8),
 (8, 6, 9)]