Homework Statement
Let R={[x,y,z,w]:x=y and z=w} and N={[x,y,z,w]:x=-y and z=-w}
Find the rule in standard coordinates for the projection of R4x1 onto R along NHomework Equations
The Attempt at a Solution
I have B wrt R as {[1,1,0,0],[0,0,1,1]} and B wrt N as {[1,-1,0,0], [0,0,1,-1]}, so my...