orth(1)

NAME
orth - orthogonal basis

CALLING SEQUENCE
Q=orth(A)

PARAMETERS

A   : real or complex matrix

Q   : real or complex matrix

DESCRIPTION
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.

SEE ALSO
qr, rowcomp, colcomp