= MATLAB qr =

The '''`qr`''' function calculates the [[LinearAlgebra/Orthonormalization#QR_Decomposition|QR decomposition]] of any matrix.

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== Usage ==

To solve the problem `Ax = b` for any size matrix `A`, try:

{{{
[Q, R] = qr(A);
y = Q' * b;
x = R \ y;
}}}

The original `A` can be returned by `Q*R`.



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