a=([[0,0,1],[0,0,1],[1,1,1]])
b=([[0,0,1,2],[0,0,1,2],[1,1,1,0]])
a.rank()
b.rank()
a.left_kernel()
b.left_kernel()

Strang-2_4-U (last edited 2010-12-18 06:04:06 by mamatha)