Calculates the approximate solution of a set of real symmetric positive definite linear equations with multiple right hand sides, AX=B, where A has been decomposed into triangular matrices A = LL(transpose) using F03AEF. Classes : D2b1b . Solution of systems of linear equations, including matrix inverses, and LU and related factorizations (real symmetric positive definite matrices) Type : Fortran subroutine in NAG library (F04 sublibrary). Access : Proprietary. Many implementations available. Precision: Double. Usage : CALL F04AGF (N, IR, A, IA, P, B, IB, X, IX) See also : F03AEF Details : Documentation Example Example-input Example-output Sites : (1) AIX (2) ITL
AIX: IBM RS6000, National Institute of Standards and Technology (NIST), Gaithersburg, MD. Available to NIST staff. Precision: Double. Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted. Link : f77 -o prog prog.f -L/itl/links/generic/lib -lnag Documentation: acroread /itl/apps/naglib-19/docs/NAGdoc/fl/pdf/F04/f04agf_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/f04agfe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/f04agfe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/f04agfe.r
ITL: Unix Workstation Network, National Institute of Standards and Technology (NIST), Gaithersburg, MD. Available to NIST staff. Precision: Double. Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted. Link : f77 -o prog prog.f {-lcomplib.sgimath} -L/itl/links/generic/{lib lib32 lib64}{/mips3 /mips4} -lnag Documentation: acroread /itl/apps/naglib-19/flib619da/NAGdoc/fl/pdf/F04/f04agf_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/f04agfe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/f04agfe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/f04agfe.r
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