Ruby | Matrix symmetric?() function

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

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