# Inverse of a matrix in Python

Written by

Himani Kohli

## Inverse of a matrix program in Python

Here, we will learn to write the code for the inverse of a matrix.

We will use numpy.linalg.inv() function to find the inverse of a matrix.

If we multiply the inverse matrix with its original matrix then we get the identity matrix.

Algorithm:

1. Import the package numpy.
2. An array is initialized using numpy and stored in variable x.
3. The array is inversed using the function numpy.linalg.inv(x) .
4. Inversed array is stored in variable y.
5. Now we’ll print both array x and y.
6. Exit

Code:

import numpy
x=numpy.array([[1,2], [3,4]])
y=numpy.linalg.inv(x)
print(x)
print (y)

Output:

[[1 2]
[3 4]]
[[-2.   1. ]
 [ 1.5 -0.5]]