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How to get the inverse of a matrix Julia

Gutha Vamsi Krishna

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 AA1=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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