Ruby | Matrix inv() function

Ruby | Matrix I() function

Last Updated : 07 Jan, 2020

The I() is an inbuilt method in Ruby returns a Identity matrix of N X N size.

Syntax: mat1.I(N)

Parameters: The function accepts a mandatory parameter N which is the size of the Identity matrix.

Return Value: It returns the Identity matrix.

Example 1:

# Ruby program for I() method in Matrix 
  
# Include matrix  
require "matrix"
  
# Initialize a matrix 
# using I method  
mat1 = Matrix.I(2) 
  
# Print the matrix 
puts mat1 

Output:

Matrix[[1, 0], [0, 1]]

Example 2:

# Ruby program for I() method in Matrix 
  
# Include matrix  
require "matrix"
  
# Initialize a matrix 
# using I method  
mat1 = Matrix.I(3) 
  
# Print the matrix 
puts mat1 

Output:

Matrix[[1, 0, 0], [0, 1, 0], [0, 0, 1]]

Ruby | Matrix inv() function

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