《利用Python》进行数据分析：Numpy基础4 数组与标量之间的运算

#coding=utf-8
__author__ = 'andy'
import numpy as np

arr1=np.array([[1.,2.,3.],[4.,5.,6.]])
print(arr1)

#基本数字运算
print(arr1*arr1)
print(arr1+arr1)
print(arr1-arr1)
print(1/arr1)
print(arr1**0.5)