local_min_rc, an Octave code 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 MIT license
local_min_rc is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and an Octave version and a Python version.
local_min, an Octave code which finds a local minimum of a scalar function of a scalar variable, without the use of derivative information, by Richard Brent.
praxis, an Octave code which minimizes a scalar function of several variables, by Richard Brent.
zero_rc, an Octave code 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; Octave version by John Burkardt.