{{{A=var('A') print A print A=matrix(QQ,([1,0],[0,1])) print A * A print A.rank() print A.nullity()

}}}

[0,1] [1,0] 2 0:

Strang-u-2,2.6-U (last edited 2010-12-17 11:07:18 by jyothi)