Python | Numpy numpy.ndarray.__neg__()

With the help of numpy.ndarray.__neg__() method of Numpy, one can multiply each and every element of an array with -1. Hence, the resultant array having values like positive values becomes negative and negative values become positive.

Syntax: ndarray.__neg__($self, /)

Return: -self

Example #1 :
In this example we can see that after applying numpy.__neg__(), we get the simple array with combination of positive and negative values in an array.

# import the important module in python 
import numpy as np 
  
# make an array with numpy 
gfg = np.array([1, -2, 3, 4, 5, 6]) 
  
# applying numpy.__neg__() method 
print(gfg.__neg__()) 

Output:

[-1  2 -3 -4 -5 -6]

Example #2 :

# import the important module in python 
import numpy as np 
  
# make an array with numpy 
gfg = np.array([[1, 2, -3, 4, 5, 6], 
                [-6, 5, 4, 3, 2, -1]]) 
  
# applying numpy.__neg__() method 
print(gfg.__neg__()) 

Output:

[[-1 -2  3 -4 -5 -6]
 [ 6 -5 -4 -3 -2  1]]

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Jitender_1998

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