a=matrix([[1,2,2,4,6],[1,2,3,6,9],[0,0,1,2,3]])
a.echelon_form()
b=matrix([[2,4,2],[0,4,4],[0,8,8]])
b.echelon_form()

Strang-2-49-U (last edited 2010-12-17 10:37:38 by lakshmi)