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

# 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

# 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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