How the inner product is defined?
Hi.
I am quite clueless about the following problem and need help on where to start.
given
y =
[1 2]
[3 4]
x1 =
[1,0]
[0,0]
x2 =
[1,0]
[0,1]
(these are all 2x2 matricies by the way, not vectors).
Record the orthogonal decomposition of Y obtained by orthogonally projecting Y onto L(X1,X2).
I have no idea where to start on this.