22 lines
683 B
Matlab
22 lines
683 B
Matlab
% Given environment
|
|
|
|
clear;
|
|
% Setup the function under test
|
|
syms x y;
|
|
fexpr = x^5 * exp(-x^2 - y^2);
|
|
title_fun = "$f(x,y) = x^5 \cdot e^{-x^2 - y^2}$";
|
|
|
|
% Calculate the gradient and Hessian
|
|
grad_fexpr = gradient(fexpr, [x, y]); % Gradient of f
|
|
hessian_fexpr = hessian(fexpr, [x, y]); % Hessian of f
|
|
|
|
% Convert symbolic expressions to MATLAB functions
|
|
fun = matlabFunction(fexpr, 'Vars', [x, y]); % Function
|
|
grad_fun = matlabFunction(grad_fexpr, 'Vars', [x, y]); % Gradient
|
|
hessian_fun = matlabFunction(hessian_fexpr, 'Vars', [x, y]); % Hessian
|
|
|
|
% Amijo globals
|
|
global amijo_beta amijo_sigma
|
|
|
|
%fixed step size globals
|
|
global gamma_fixed_step |