A positive definite symmetric matrix A can be decomposed into form A=LLT this decomposition is called ________
a) Cholesky
b) Rayleighs
c) Galerkins
d) Potential energy
Answer: a
Explanation: L is the lower triangular matrix, and its transpose LT is upper triangular matrix. This is called Cholesky decomposition. It is a decomposition of a positive definite matrix into a product of lower triangular matrix and its conjugate transpose.
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