Ruby | Matrix column_count() function Last Updated : 07 Jan, 2020 Improve Improve Like Article Like Save Share Report The column_count() is an inbuilt method in Ruby returns the number of columns in a matrix. Syntax: mat1.column_count() Parameters: The function does not accepts any parameter. Return Value: It returns the number of columns in a matrix. Example 1: # Ruby program for column_count() method in Matrix # Include matrix require "matrix" # Initialize a matrix mat1 = Matrix[[1, 21], [31, 18]] # prints the number of columns puts mat1.column_count Output: 2 Example 2: # Ruby program for column_count() method in Matrix # Include matrix require "matrix" # Initialize a matrix mat1 = Matrix[[13, 1, 5], [12, 1, 5], [11, 2, 5]] # prints the number of columns puts mat1.column_count Output: 3 Like Article Suggest improvement Previous Ruby | Matrix identity() function Next Ruby | Matrix column() function Share your thoughts in the comments Add Your Comment Please Login to comment...