python怎样引用numpy

Question

python怎样引用numpy

Answer 1

你得先下载numpy，在mac的terminal或者windows的cmd里面输入命令行

1	pip install numpy

然后再

1	import numpy

Answer 2

import numpy as np
x = 1.0
y = np.sin(x)
print(x, y)

A = np.array([[1, 2], [3, 4]])
print(A)