Linear Transformations as Change of Basis
v =(v ,v ) j =(0,1)
x
y
p uv p ij
u=(u ,u )
x
y
i =(1,0)
ij
uv
p = (4,3) p = 4u+3v
p =4u +3v x ij = u x v x 4 = u x v x uv
x
x
p =4u +3v y p u y v y 3 u y v y p
y
y
Any linear transformation is a basis!!!