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  "Author": "Sergio Andrés Cabrera Miranda\n<https://orcid.org/0000-0002-8126-8521>, Juan Gabriel Triana\nLaverde <https://orcid.org/0000-0003-2991-6082>",
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  "Description": "The solution of equality constrained least squares problem\n(LSE) is given through four analytics methods (Generalized QR\nFactorization, Lagrange Multipliers, Direct Elimination and\nNull Space method). We expose the orthogonal decomposition\ncalled Generalized QR Factorization (GQR) and also RQ\nfactorization. Finally some codes for the solution of LSE\napplied in quaternions.",
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