Python中的 numpy.bitwise_and()

numpy.bitwise_and()函数用于计算两个数组元素的按位与。此函数计算输入数组中整数的底层二进制表示的按位与。

Syntax : numpy.bitwise_and(arr1, arr2, /, out=None, *, where=True, casting=’same_kind’, order=’K’, dtype=None, ufunc ‘bitwise_and’)

Parameters :
arr1 : [array_like] Input array.
arr2 : [array_like] Input array.
out : [ndarray, optional] A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned.
**kwargs : allows you to pass keyword variable length of argument to a function. It is used when we want to handle named argument in a function.
where : [array_like, optional]True value means to calculate the universal functions(ufunc) at that position, False value means to leave the value in the output alone.

Return : [ndarray or scalar] Result. This is a scalar if both x1 and x2 are scalars.

代码#1：工作

# Python program explaining
# bitwise_and() function
  
import numpy as geek
in_num1 = 10
in_num2 = 11
  
print ("Input  number1 : ", in_num1)
print ("Input  number2 : ", in_num2) 
    
out_num = geek.bitwise_and(in_num1, in_num2) 
print ("bitwise_and of 10 and 11 : ", out_num) 

输出 ：

Input  number1 :  10
Input  number2 :  11
bitwise_and of 10 and 11 :  10

代码#2：

# Python program explaining
# bitwise_and() function
  
import numpy as geek
  
in_arr1 = [2, 8, 125]
in_arr2 = [3, 3, 115]
   
print ("Input array1 : ", in_arr1) 
print ("Input array2 : ", in_arr2)
    
out_arr = geek.bitwise_and(in_arr1, in_arr2) 
print ("Output array after bitwise_and: ", out_arr) 

输出 ：

Input array1 :  [2, 8, 125]
Input array2 :  [3, 3, 115]
Output array after bitwise_and:  [  2   0 113]

代码#3：

# Python program explaining
# bitwise_and() function
  
import numpy as geek
  
in_arr1 = [True, False, True, False]
in_arr2 = [False, False, True, True]
   
print ("Input array1 : ", in_arr1) 
print ("Input array2 : ", in_arr2)
    
out_arr = geek.bitwise_and(in_arr1, in_arr2) 
print ("Output array after bitwise_and: ", out_arr) 

输出 ：

Input array1 :  [True, False, True, False]
Input array2 :  [False, False, True, True]
Output array after bitwise_and:  [False False  True False]