How to get the inverse of a matrix Julia

Overview

In Julia, matrices can store heterogeneous elements. It dynamically decides the type of the value. In this shot, we will learn how to get the inverse of a matrix using Julia.

The inverse of a matrix is another matrix which, upon multiplication with the given matrix, gives the identity matrix.

For instance, if AA is the given matrix, then A∗A−1=IA * A^{-1} = I .

We can get the inverse of the matrix in Julia using the inv() function.

Syntax

inv(matrix)

Parameters and return value

It accepts a matrix as a parameter and returns the inverse matrix of it.

Example

Let us take a look at an example.

#give matrix
A = [1 -1; 0 2]
#get inverse of matrix
display(inv(A))

Explanation

In the code snippet above:

  • Line 2: We declare and initialize matrix A.
  • Line 5: We use the inv() function to get the inverse of the matrix A and display the returned inverse matrix of A.

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