44 lines
1.2 KiB
Matlab
44 lines
1.2 KiB
Matlab
% Define environment (functions, gradients etc...)
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GivenEnv
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% Point x0 = (0, 0)
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% =========================================================================
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point = 1;
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x0 = [0, 0];
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f = fun(x0(1), x0(2));
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gf = grad_fun(x0(1), x0(2));
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hf = hessian_fun(x0(1), x0(2));
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ev = eig(hf);
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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);
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disp(' ');
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% Point x0 = (-1, 1)
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% =========================================================================
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point = 2;
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x0 = [-1, 1];
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point_str = "[" + x0(1) + ", " + x0(2) + "]";
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f = fun(-1, 1);
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gf = grad_fun(x0(1), x0(2));
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hf = hessian_fun(x0(1), x0(2));
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ev = eig(hf);
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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);
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disp(' ');
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% Point x0 = (1, -1)
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% =========================================================================
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point = 3;
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x0 = [1, -1];
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point_str = "[" + x0(1) + ", " + x0(2) + "]";
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f = fun(-1, 1);
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gf = grad_fun(x0(1), x0(2));
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hf = hessian_fun(x0(1), x0(2));
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ev = eig(hf);
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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);
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