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Reduce numpy array concatenations

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This commit is contained in:
Michael Bradley 2023-10-07 18:17:10 -04:00
parent 292d374a2c
commit 6b623d3a30
1 changed files with 2 additions and 5 deletions
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7
physics.py
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@ -4,13 +4,10 @@ import numpy as np
G = 6.674e-11 G = 6.674e-11
def rotate(a: np.ndarray, n: int):
return np.concatenate(np.split(a, [n])[::-1])
def rotations(a: np.ndarray): def rotations(a: np.ndarray):
a2 = np.concatenate((a, a))
for i in range(1, len(a)): for i in range(1, len(a)):
yield rotate(a, i) yield np.split(a2, [i, i + len(a)])[1]
def n_body(pos: np.ndarray, vel: np.ndarray, mass: np.ndarray): def n_body(pos: np.ndarray, vel: np.ndarray, mass: np.ndarray):