The identity() is an inbuilt method in Ruby returns an Identity matrix of N X N size.
Syntax: mat1.identity(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 identity() method in Matrix # Include matrix require "matrix"
# Initialize a matrix # using identity method mat1 = Matrix.identity( 2 )
# Print the matrix puts mat1 |
Output:
Matrix[[1, 0], [0, 1]]
Example 2:
# Ruby program for identity() method in Matrix # Include matrix require "matrix"
# Initialize a matrix # using identity method mat1 = Matrix.identity( 3 )
# Print the matrix puts mat1 |
Output:
Matrix[[1, 0, 0], [0, 1, 0], [0, 0, 1]]