Ruby | Matrix empty?() function Last Updated : 07 Jan, 2020 Improve Improve Like Article Like Save Share Report The empty?() is an inbuilt method in Ruby returns a boolean value. It returns true if the matrix is empty, else it returns false. Syntax: mat1.empty?() Parameters: The function does not accepts any parameter. Return Value: It returns a boolean value. Example 1: # Ruby program for empty() method in Matrix # Include matrix require "matrix" # Initialize a matrix mat1 = Matrix[[1, 21], [31, 18]] # prints if empty or not puts mat1.empty?() Output: false Example 2: # Ruby program for empty() method in Matrix # Include matrix require "matrix" # Initialize a matrix mat1 = Matrix[] # prints if empty or not puts mat1.empty?() Output: true Like Article Suggest improvement Previous Ruby | Matrix identity() function Next Ruby | Time utc_offset function Share your thoughts in the comments Add Your Comment Please Login to comment...