NumPy divide()

Summary: in this tutorial, you’ll learn how to use the numpy divide() function or the / operator to find the quotient of two equal-sized arrays, element-wise.

Introduction to the Numpy subtract function

The / operator or divide() function returns the quotient of two equal-sized arrays by performing element-wise division.

Let’s take some examples of using the / operator and divide() function.

Using NumPy divide() function and / operator to find the quotient of two 1D arrays

The following example uses the / operator to find the quotient of two 1-D arrays:

import numpy as np

a = np.array([8, 6])
b = np.array([2, 3])

c = a/b
print(c)Code language: Python (python)

Output:

[4. 2.]Code language: Python (python)

How it works.

First, create two 1D arrays with two numbers in each:

a = np.array([8, 6])
b = np.array([2, 3])Code language: Python (python)

Second, find the quotient of a/b by using the * operator:

c = a / bCode language: Python (python)

The / operator returns the quotient of each element in array a with the corresponding element in array b:

[8/2, 6/3] = [4,2]Code language: Python (python)

Similarly, you can use the divide() function to get the quotient of two 1D arrays as follows:

import numpy as np

a = np.array([8, 6])
b = np.array([2, 3])

c = np.divide(a, b)
print(c)Code language: Python (python)

Output:

[4. 2.]Code language: Python (python)

Using NumPy divide() function and / operator to get the quotient of two 2D arrays

The following example uses the / operator to find the quotient of two 2D arrays:

import numpy as np

a = np.array([[10, 8], [6, 4]])
b = np.array([[5, 2], [2, 1]])

c = a/b
print(c)
Code language: Python (python)

Output:

[[2. 4.]
 [3. 4.]]Code language: Python (python)

In this example, the / operator performs element-wise division:

[[ 10/5  8/2]
 [3*7 4*8]]Code language: Python (python)

Likewise, you can use the divide() function to find the products of two 2D arrays:

import numpy as np

a = np.array([[10, 8], [6, 4]])
b = np.array([[5, 2], [2, 1]])

c = np.divide(a, b)
print(c)
Code language: Python (python)

Output:

[[2. 4.]
 [3. 4.]]Code language: Python (python)

Summary

• Use the * operator or divide() function to find the quotient of two equal-sized arrays.