A comprehensive modified Gauss-Newton algorithm for finding an unconstrained minimum of a sum of squares of M non-linear functions in N variables (m .ge. n). First and second derivatives are required. Classes : K1b1a3 . Unconstrained nonlinear least squares approximation by smooth functions, user provides first and second derivatives Type : Fortran subroutine in NAG library (E04 sublibrary). Access : Proprietary. Many implementations available. Precision: Double. Usage : CALL E04HEF (M, N, LSQFUN, LSQHES, LSQMON, IPRINT, MAXCAL, ETA, XTOL, STEPMS, X, FSUMSQ, FVEC, FJAC, LJ, S, V, LV, NITER, NF, IW, LIW, W, LW, IFAIL) See also : E04YCF 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/E04/e04hef_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/e04hefe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/e04hefe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/e04hefe.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/E04/e04hef_fl19.pdf Example : cat /itl/apps/naglib-19/flib619da/examples/source/e04hefe.f Example-input: cat /itl/apps/naglib-19/flib619da/examples/data/e04hefe.d Example-outpu: cat /itl/apps/naglib-19/flib619da/examples/results/e04hefe.r
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