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numpy.diag - NumPy Documentation, NumPy Developers, 2023 - Official documentation explaining the functionality and usage of np.diag for creating and extracting diagonal matrices.numpy.triu and numpy.tril - NumPy Documentation, NumPy Developers, 2023 - Official documentation detailing the usage of np.triu and np.tril for obtaining upper and lower triangular matrices.© 2025 ApX Machine LearningEngineered with