43 lines
1.2 KiB
Matlab
43 lines
1.2 KiB
Matlab
% Define environment (functions, gradients etc...)
|
|
GivenEnv
|
|
|
|
|
|
% Point x0 = (0, 0)
|
|
% =========================================================================
|
|
point = 1;
|
|
x0 = [0, 0];
|
|
f = fun(x0(1), x0(2));
|
|
gf = grad_fun(x0(1), x0(2));
|
|
hf = hessian_fun(x0(1), x0(2));
|
|
ev = eig(hf);
|
|
fprintf('Initial point (%d, %d), f = %f, grad = [%f;%f], hessian = [%f %f ; %f %f]. Eigenvalues= [%f, %f], Can NOT use method\n', x0, f, gf, hf, ev);
|
|
disp(' ');
|
|
|
|
|
|
% Point x0 = (-1, 1)
|
|
% =========================================================================
|
|
point = 2;
|
|
x0 = [-1, 1];
|
|
point_str = "[" + x0(1) + ", " + x0(2) + "]";
|
|
|
|
f = fun(-1, 1);
|
|
gf = grad_fun(x0(1), x0(2));
|
|
hf = hessian_fun(x0(1), x0(2));
|
|
ev = eig(hf);
|
|
fprintf('Initial point (%d, %d), f = %f, grad = [%f;%f], hessian = [%f %f ; %f %f]. Eigenvalues= [%f, %f], Can NOT use method\n', x0, f, gf, hf, ev);
|
|
disp(' ');
|
|
|
|
% Point x0 = (1, -1)
|
|
% =========================================================================
|
|
point = 3;
|
|
x0 = [1, -1];
|
|
point_str = "[" + x0(1) + ", " + x0(2) + "]";
|
|
|
|
f = fun(-1, 1);
|
|
gf = grad_fun(x0(1), x0(2));
|
|
hf = hessian_fun(x0(1), x0(2));
|
|
ev = eig(hf);
|
|
fprintf('Initial point (%d, %d), f = %f, grad = [%f;%f], hessian = [%f %f ; %f %f]. Eigenvalues= [%f, %f], Can NOT use method\n', x0, f, gf, hf, ev);
|
|
|
|
|