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#edge computing Open access

leigqNEWTON: Newton-based computation of left eigenpairs of quaternion matrices (MATLAB toolbox)

Oct 2026 · Zenodo (CERN European Organization for Nuclear Research)

Abstract

Bug-fix release associated with the revision of "Computing Left Eigenvalues of Quaternion Matrices". uses scale-aware relative residual acceptance fixes zero-eigenvalue/nullspace edge cases fixes the multiplication side in the polishing Jacobian improves diagonal-shortcut, trial-budget, and backtracking safety adds residual certificate consistency checks adds targeted regression tests The revised public core passed all 29 targeted MATLAB regression tests. Full Changelog: https://github.com/michaelsebek/leigqNEWTON-public/compare/v1.0.4...v1.0.5

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