NumPy: Multiply two given arrays of same size element-by-element

NumPy: Basic Exercise-59 with Solution

Write a NumPy program to multiply two given arrays of the same size element-by-element.

Sample Solution:

Python Code:

# Importing the NumPy library with an alias 'np'
import numpy as np 

# Creating two NumPy arrays 'nums1' and 'nums2' containing 2x3 matrices
nums1 = np.array([[2, 5, 2],
              [1, 5, 5]])

nums2 = np.array([[5, 3, 4],
              [3, 2, 5]])

# Printing the contents of 'nums1' array
print("Array1:") 
print(nums1)

# Printing the contents of 'nums2' array
print("Array2:") 
print(nums2)

# Performing element-wise multiplication of arrays 'nums1' and 'nums2' using np.multiply()
# This operation multiplies corresponding elements of the two arrays
print("\nMultiply said arrays of same size element-by-element:")
print(np.multiply(nums1, nums2)) 

Sample Output:

Array1:
[[2 5 2]
 [1 5 5]]
Array2:
[[5 3 4]
 [3 2 5]]

Multiply said arrays of same size element-by-element:
[[10 15  8]
 [ 3 10 25]]

Explanation:

In the above code -

nums1 = np.array([[2, 5, 2], [1, 5, 5]]): Creates a 2D NumPy array of shape (2, 3) with the specified values and stores in a variable ‘nums1’

nums2 = np.array([[5, 3, 4], [3, 2, 5]]): Creates another 2D NumPy array of shape (2, 3) with the specified values and stores in a variable ‘nums2’

print(np.multiply(nums1, nums2)): Uses the np.multiply() function to perform element-wise multiplication of the two arrays nums1 and nums2. The resulting array has the same shape as the input arrays (2, 3).

Python-Numpy Code Editor:

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