Keyword : Cholesky's method

F01ABF	Inverse of real symmetric positive definite matrix using iterative refinement
F01ADF	Inverse of real symmetric positive definite matrix
F01BLF	Pseudo-inverse and rank of real $m$ by $n$ matrix $(m \geq n)$
F01MCF	$L D L^{T}$ factorization of real symmetric positive definite variable-bandwidth matrix
F04ABF	Solution of real symmetric positive definite simultaneous linear equations with multiple right-hand sides using iterative refinement (Black Box)
F04ASF	Solution of real symmetric positive definite simultaneous linear equations, one right-hand side using iterative refinement (Black Box)