转自:https://blog.csdn.net/lql0716/article/details/52910812
numpy.power(x1, x2)
数组的元素分别求n次方。x2可以是数字,也可以是数组,但是x1和x2的列数要相同。
>>> x1 = range(6)
>>> x1
[0, 1, 2, 3, 4, 5]
>>> np.power(x1, 3)
array([ 0, 1, 8, 27, 64, 125])
1
2
3
4
5
>>> x2 = [1.0, 2.0, 3.0, 3.0, 2.0, 1.0]
>>> np.power(x1, x2)
array([ 0., 1., 8., 27., 16., 5.])
1
2
3
>>> x2 = np.array([[1, 2, 3, 3, 2, 1], [1, 2, 3, 3, 2, 1]])
>>> x2
array([[1, 2, 3, 3, 2, 1],
[1, 2, 3, 3, 2, 1]])
>>> np.power(x1, x2)
array([[ 0, 1, 8, 27, 16, 5],
[ 0, 1, 8, 27, 16, 5]])
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作者:jason_ql
来源:CSDN
原文:https://blog.csdn.net/lql0716/article/details/52910812?utm_source=copy
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