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21 lines
585 B
Python
21 lines
585 B
Python
import numpy as np
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def kinetic(W: np.ndarray) -> np.ndarray:
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"""Computes the kinetic energy.
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:param W: Phase-space vectors
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:returns T: Kinetic energy
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"""
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U = W[1,0]
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V = W[1,1]
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# If U or V is not an array (or a list), but rather a scalar, then we
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# create a list of one element so that it can work either way
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if np.ndim(U) == 0: U = np.array([U])
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if np.ndim(V) == 0: V = np.array([V])
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return (U**2 + V**2)/2
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def total(W: np.ndarray,
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potential,
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kinetic = kinetic) -> np.ndarray:
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return potential(W) + kinetic(W)
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