consider
a=vector([1,1,3])
b=vector([2,3,6])
c=vector([1,4,3])
the basis for r^3 is,
r^3=a.basis()*b.basis()*c.basis()
there fore,
the vectors a,b,c form a basis.

Strang-2_12-U (last edited 2010-12-18 09:10:50 by mamatha)