SVD:
Singular Value Decomposition (SVD) is a fundamental technique in linear algebra used to factorize a matrix into three simpler matrices:
[ A = U \Sigma V^T ]
Where:
U is an orthogonal matrix containing the left singular vectors.
Σ is a diagonal matrix with singular values (square roots of eigenvalues).
V^T is the transpose of an orthogonal matrix containing the right singular vectors.