Math Problem Statement
Find single value decomposition of a matrix 2×3 ,3 2 2 2 3 -2
Solution
To find the singular value decomposition (SVD) of the given matrix:
Steps for SVD:
-
Form the matrix :
Calculate , the transpose of matrix , and then compute . -
Compute eigenvalues and eigenvectors of . The singular values are the square roots of the eigenvalues of .
-
Compute :
The matrix is obtained from the eigenvectors of and gives the left singular vectors. -
Compute :
The matrix is obtained from the eigenvectors of and gives the right singular vectors.
Let me calculate this step by step.The singular value decomposition (SVD) of matrix is given by:
Where:
- Matrix (left singular vectors): 0.7071 & -0.7071 \\ 0.7071 & 0.7071 \end{pmatrix}$$
- Matrix (singular values along diagonal): 5 & 0 & 0 \\ 0 & 6.01 \times 10^{-8} & 0 \end{pmatrix}$$
- Matrix (right singular vectors): -0.7071 & -0.6667 & 0.2357 \\ -0.7071 & 0.6667 & -0.2357 \\ 0 & 0.3333 & 0.9428 \end{pmatrix}$$
This gives the full SVD decomposition.
Would you like more details or have any questions?
Here are five related questions to explore further:
- How do the eigenvalues of relate to the singular values?
- Why are the singular values in non-negative?
- How is the rank of a matrix determined from its singular values?
- What is the physical interpretation of SVD in data analysis?
- How does SVD help in matrix compression and dimensionality reduction?
Tip: The smallest singular values can often be ignored in practice to reduce noise in data applications.
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Singular Value Decomposition
Matrix Decomposition
Formulas
A = U Σ V^T (Singular Value Decomposition formula)
Eigenvalue and eigenvector calculations for A^T A and A A^T
Theorems
Singular Value Decomposition Theorem
Eigenvalue Decomposition Theorem
Suitable Grade Level
University Level (Undergraduate or Graduate)