The symmetric?() is an inbuilt method in Ruby returns a boolean value. It returns true if the matrix is symmetric, else it returns false. It throws an error if anything other than a square matrix is checked for.
Syntax: mat1.symmetric?()
Parameters: The function needs a matrix whose symmetric is to be checked for.
Return Value: It returns true if the matrix is symmetric, else it returns false.
Example 1:
# Ruby program for symmetric?() method in Matrix # Include matrix require "matrix"
# Initialize a matrix mat1 = Matrix[[1, 21], [31, 18]]
# Prints the value of mat1.symmetric?() puts mat1.symmetric?() |
Output:
true
Example 2:
# Ruby program for symmetric?() method in Matrix # Include matrix require "matrix"
# Initialize a matrix mat1 = Matrix[[1, 1, 5], [1, 1, 5], [1, 2, 5]]
# Prints the value of mat1.symmetric?() puts mat1.symmetric?() |
Output:
false