SciPy Recipes

How to do it…

In the following section, we will look into how to implement the same in Python.

The function to extract the matrix rank of a given matrix is available in numpy.linalg as matrix_rank. 

1. Import the relevant packages:

import numpy as np

2. Initialize a matrix:

a=np.array([[3,2,-1],[2,-3,-5],[-1,-4,-3]]) 

3. Use the relevant function:

np.linalg.matrix_rank(a)2

From the preceding code, we can see that the rank of the initialized matrix is 2. 

The nullity of a matrix is the difference between the number of columns and the rank of a matrix.

In this particular example, the nullity of matrix is as follows:

In the following code, we'll ...