Name
orth — orthogonal basis
Calling Sequence
Q=orth(A)
Parameters
- A
real or complex matrix
- Q
real or complex matrix
Description
Q=orth(A) returns Q, an orthogonal
basis for the span of A. Range(Q) =
Range(A) and Q'*Q=eye.
The number of columns of Q is the rank of
A as determined by the QR algorithm.
Examples
A=rand(5,3)*rand(3,4);
[X,dim]=rowcomp(A);X=X';
svd([orth(A),X(:,1:dim)])