Python中的 numpy.invert()

numpy.invert()函数用于计算数组元素的按位反转。它计算输入数组中整数的底层二进制表示的按位 NOT。

对于有符号整数输入，返回二进制补码。在二进制补码系统中，负数由绝对值的二进制补码表示。

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

Parameters :
x : [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 x is scalar.

代码#1：工作

# Python program explaining
# invert() function
  
import numpy as geek
in_num = 10
print ("Input  number : ", in_num)
    
out_num = geek.invert(in_num) 
print ("inversion of 10 : ", out_num) 

输出 ：

Input  number :  10
inversion of 10 :  -11

代码#2：

# Python program explaining
# invert() function
  
import numpy as geek
  
in_arr = [2, 0, 25]
print ("Input array : ", in_arr)
    
out_arr = geek.invert(in_arr) 
print ("Output array after inversion: ", out_arr) 

输出 ：

Input array :  [2, 0, 25]
Output array after inversion:  [ -3  -1 -26]

代码#3：

# Python program explaining
# invert() function
  
import numpy as geek
  
in_arr = [True, False]
print("Input array : ", in_arr) 
  
    
out_arr = geek.invert(in_arr) 
print ("Output array after inversion: ", out_arr) 

输出 ：

Input array :  [True, False]
Output array after inversion:  [False  True]