(CPBRFS/ZPBRFS) returns error bounds for the solution of a complex Hermitian positive-definite band system of linear equations with multiple right-hand sides, A*X = B. It improves the solution by iterative refinement, in order to reduce the backward error as much as possible. Classes : D2d2 . Solution of systems of linear equations, including matrix inverses, and LU and related factorizations (complex Hermitian positive definite banded matrices) Type : Fortran subroutine in NAG library (F07 sublibrary). Access : Proprietary. Many implementations available. Precision: Double. Usage : CALL F07HVF(UPLO, N, KD, NRHS, AB, LDAB, AFB, LDAFB, B, LDB, X, LDX, FERR, BERR, WORK, RWORK, INFO) 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/F07/f07hvf_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/f07hvfe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/f07hvfe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/f07hvfe.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/F07/f07hvf_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/f07hvfe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/f07hvfe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/f07hvfe.r
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