golden_section, an Octave code which estimates a minimizer of a function f(x) over the interval [a,b], assuming f(x) is unimodular ("U-shaped") over [a,b].
The program returns an estimate for a critical point x, which might be a minimum, maximum or just an inflection point. It also returns the number of iterations.The information on this web page is distributed under the MIT license.
golden_section is available in a MATLAB version and an Octave version.
glomin, an Octave code which finds a global minimum of a scalar function of a scalar argument, without the use of derivative information, by Richard Brent.
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.
local_min_rc, an Octave code which finds a local minimum of a scalar function of a scalar variable, without the use of derivative information, using reverse communication (RC), by Richard Brent.
opt_golden, an Octave code which interactively estimates a minimizer of a function f(x) assuming f(x) is unimodular (U-shaped) over the interval [a,b].
test_min, an Octave code which implements test problems for minimization of a scalar function of a scalar variable.