# Ruby program for hash() method in Matrix
  
# Include matrix
require "matrix"
 
# Initializes the matrix
mat1 = Matrix[[12, 21], [31, 12]]
  
# Prints the hash-code
puts  mat1.hash()

631900695216402634

# Ruby program for hash() method in Matrix
  
# Include matrix
require "matrix"
 
# Initializes the matrix
mat1 = Matrix[[6, 7], [9, 10], [12, 4]]
  
# Prints the hash-code
puts  mat1.hash()

-1308023948917233670]