Python | Numpy MaskedArray.rmul

Namachila October 13, 2025

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numpy.ma.MaskedArray class is a subclass of ndarray designed to manipulate numerical arrays with missing data. With the help of Numpy MaskedArray.__rmul__ we can multiply a particular value that is provided as a parameter in the MaskedArray.__rmul__() method.

Syntax: numpy.MaskedArray.__rmul__

Return: Multiply others by self, and return a new masked array.

Example #1 :
In this example we can see that each and every element in an array is multiplied with the value given as a parameter in method MaskedArray.__rmul__().

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

Output:

[ 3  6  9 12 15]

Example #2:

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