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

Strang-2.4-U (last edited 2010-12-17 12:10:39 by 172)