Module HYBRD in MINPACK
Finds a zero of a system of n nonlinear functions in n variables by a modification of
the Powell hybrid method. The user must provide a subroutine which calculates the
functions. The Jacobian is then calculated by a forward-difference
approximation.
Classes : F2 . Solution of a system of nonlinear equations
Type : Fortran subroutine in MINPACK package.
Access : Public domain. Portable.
Precision: Double.
Note : Single precision version available in NETLIB package SMINPACK.
Usage : CALL HYBRD(FCN, N, X, FVEC, XTOL, MAXFEV, ML, MU, EPSFCN, DIAG, MODE,
FACTOR, NPRINT, INFO, NFEV, FJAC, LDFJAC, R, LR, QTF, WA1, WA2, WA3,
WA4)
Details : Fullsource Source
Sites : (1) NETLIB
NETLIB: Public access repository, The University of Tennessee at
Knoxville and Bell Laboratories
Precision: Double.
Note : Single precision version available in NETLIB package SMINPACK.
You may access components from NETLIB outside GAMS as follows.
Source : echo "send only hybrd from minpack" | mail netlib@ornl.gov
Fullsource : echo "send hybrd from minpack" | mail netlib@ornl.gov
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