qr decomposition Algorithm

In linear algebra, a QR decomposition, also known as a QR factorization or QU factorization is a decomposition of a matrix A into a merchandise A = QR of an orthogonal matrix Q and an upper triangular matrix R. QR decomposition is often used to solve the linear least squares problem and is the basis for a particular eigenvalue algorithm, the QR algorithm.

qr decomposition source code, pseudocode and analysis

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