R rbcc Junior Member Joined Nov 18, 2009 Messages 126 Nov 25, 2010 #1 if A projection matrix M then Mx^T*Mx=Mx why does this result occur, why isn't it Mx^2? Thank you, rbcc
if A projection matrix M then Mx^T*Mx=Mx why does this result occur, why isn't it Mx^2? Thank you, rbcc
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Nov 26, 2010 #2 It may be as you have stated it. Recall that a Projection Matrix has a few interesting features: Mx = Mx* -- Where Mx* is the Adjoint Matrix Mx^2 = Mx -- This one may enser your question entirely.
It may be as you have stated it. Recall that a Projection Matrix has a few interesting features: Mx = Mx* -- Where Mx* is the Adjoint Matrix Mx^2 = Mx -- This one may enser your question entirely.
