Gradient algorithms to find minimizer

1.baracketing.py

• applying ε = 0.075, interval 2ε, bracketing procedure stops, when the function value(f_i) turns into upward.
• e.g., f_0 > f_1 > f_2 > f_3 > f_4 & f_4 < f_5 indicating that the minimizer will is between p_4 and p_5.

2. goldensection.py
3. fibonacci.py
4. normal_gradient.py
5. steepest_gradient
6. newton_method.py
7. Conjugate gradient
8. DFP_algorithm
9. BFGS_algorithm
10. PSO: Partical swarm optimization
11. Genetic_algorithm