Recent Posts
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Load RAO, Froud-Kyrlov force, Diffraction forceMathematics 2020. 9. 11. 10:43
Froud-Krylov force a hydrodynamic force introduced by the unsteady pressure field generated by undisturbed waves (https://en.wikipedia.org/wiki/Froude%E2%80%93Krylov_force) Diffraction force: occurs due to a floating body disturbing the waves Load RAO (= Wave excitation force): Froud-Kyrlov force + Diffraction force
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Optimization Course [최민주 교수님 최적화 수업]Mathematics 2020. 9. 11. 09:57
1. Linear programming 2. Simplex 3. Mixed integer programming 4. Binary integer programming 5. Goal programming 6. Network models, Graph theory 7. Minimum spanning tree 8. Stenier tree problem 9. A* (A star) 10. Non-linear optimization problems and nonlinear programming 11. Meta-heuristics 12. Genetic algorithm (GA) 13. Particle swarm optimization Linear programming : to find optimal value(s) fo..
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Euler's Method, 오일러 방법, 오일러 적분Mathematics 2020. 9. 10. 23:56
Overview 미분방정식 dydx=f(x,y)의 수치해를 구하는 방법 작은 상수 h를 고정 xk+1=xk+h라 두자 초기값 (x0,y0)가 주어져 있을 때, 다음의 식을 이용하여 수치해를 구함. ∴ Example import numpy as np import matplotlib.pyplot as plt # expression y = lambda x: 2**x y_diff = lambda x: (2**x)*np.log(2) # derivative of exp # settings h = 0.1 x_range = np.arange(0, 3, 0.1) # initial value init_x = x_r..
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Butterworth Filter explained with codesMathematics 2020. 9. 10. 23:45
Explanation The following ms-word file explains the Butterworth filter up to 2nd order as kindly as possible. It also contains Python codes for the implementation of the filter to filter time series. In short, It deals with both base-knowledge and actual implementation. Implementation in Jupyter