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Answer
True. The singular value decomposition writes any m×n matrix A as UΣVᵀ, where U and V are orthogonal and Σ is a diagonal matrix (possibly rectangular) containing the singular values. This diagonal Σ captures the essential scaling of A in orthogonal directions, so the decomposition effectively represents A in a “diagonal form” for analysis. The original matrix A itself is not diagonal, but its action is described by the diagonal Σ. For example, a 2×3 matrix [[1,0,0],[0,2,0]] has SVD with Σ=[[1,0,0],[0,2,0]], making its singular values clear.
Detailed Explanation
SVD breaks any m x n matrix into three parts: U, a diagonal matrix Σ, and V*. Other options are incorrect because The mistake is thinking only square matrices can be turned into a diagonal form.
Key Concepts
Matrix Decomposition Techniques
Singular Value Decomposition
Eigen Decomposition
Topic
Matrix Decomposition Techniques
Difficulty
easy level question
Cognitive Level
understand
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