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May 13, 2012 19:08
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Símbolo de Levi-Civita en Python
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# coding: utf-8 | |
# Símbolo de Levi-Civita en Python utilizando listas por comprensión | |
# Fórmula extraída de http://en.wikipedia.org/wiki/Levi-Civita_symbol#Three_dimensions | |
# Válido para Python 2 y 3 | |
# | |
# Juan Luis Cano Rodríguez <juanlu001@gmail.com> | |
from __future__ import print_function | |
import numpy as np | |
e = np.array([[[int((i - j) * (j - k) * (k - i) / 2) for k in range(3)] for j in range(3)] for i in range(3)]) | |
print(e) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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[[[ 0. 0. 0.] | |
[ 0. 0. 1.] | |
[ 0. -1. 0.]] | |
[[ 0. 0. -1.] | |
[ 0. 0. 0.] | |
[ 1. 0. 0.]] | |
[[ 0. 1. 0.] | |
[-1. 0. 0.] | |
[ 0. 0. 0.]]] |
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