QR Decomposition

qr(A) Returns a matrix whose first m columns contain the square, orthonormal matrix Q, with the same number of rows as A, and whose remaining n columns contain the upper triangular matrix, R, satisfying the equation A = Q·R. Use the function submatrix to extract these smaller matrices. The qr function uses the Householder algorithm.

Arguments:

• A is a real m × n matrix.

Notes:

• To solve a linear system of equations, you may wish to use lsolve or a Solve Block.

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