Man Scilab

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)])
 
  

See Also

qr ,   rowcomp ,   colcomp ,   range ,  

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