LOCAL_MIN_RC is a FORTRAN90 library which seeks a local minimum of a scalar function of a scalar variable, without requiring derivatives, or assuming the function is differentiable, using reverse communication (RC), by Richard Brent.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
LOCAL_MIN_RC is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.
ASA047, a FORTRAN90 library which minimizes a scalar function of several variables using the Nelder-Mead algorithm.
BACKTRACK_BINARY_RC, a FORTRAN90 library which carries out a backtrack search for a set of binary decisions, using reverse communication (RC).
BISECTION_RC, a FORTRAN90 library which demonstrates the simple bisection method for solving a scalar nonlinear equation in a change of sign interval, using reverse communication (RC).
BRENT, a FORTRAN90 library which contains routines for finding zeroes or minima of a scalar function of a scalar variable, without the use of derivative information, including a reverse communication (RC) option, by Richard Brent.
CG_RC, a FORTRAN90 library which implements the conjugate gradient (CG) method for solving a positive definite sparse linear system A*x=b, using reverse communication (RC).
COMPASS_SEARCH, a FORTRAN90 library which seeks the minimizer of a scalar function of several variables using compass search, a direct search algorithm that does not use derivatives.
NMS, a FORTRAN90 library which includes versions of Brent's minimizer and zero finder.
PRAXIS, a FORTRAN90 library which minimizes a scalar function of several variables.
ROOT_RC, a FORTRAN90 library which seeks a solution of a scalar nonlinear equation f(x) = 0, or a system of nonlinear equations, using reverse communication (RC), by Gaston Gonnet.
ROOTS_RC, a FORTRAN90 library which seeks a solution of a system of nonlinear equations f(x) = 0, using reverse communication (RC), by Gaston Gonnet.
SORT_RC, a FORTRAN90 library which can sort a list of any kind of objects, using reverse communication (RC).
TEST_OPT, a FORTRAN90 library which defines test problems requiring the minimization of a scalar function of several variables.
TEST_OPTIMIZATION, a FORTRAN90 library which defines test problems for the minimization of a scalar function of several variables, as described by Molga and Smutnicki.
TOMS178, a FORTRAN90 library which optimizes a scalar functional of multiple variables using the Hooke-Jeeves method.
ZERO_RC, a FORTRAN90 library which seeks a solution of a scalar nonlinear equation f(x) = 0, using reverse communication (RC), by Richard Brent.
Original FORTRAN77 version by Richard Brent; FORTRAN90 version by John Burkardt.
You can go up one level to the FORTRAN90 source codes.