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Ruby | Matrix column_size() function
  • Last Updated : 07 Jan, 2020

The column_size() is an inbuilt method in Ruby returns the number of columns in a matrix.

Syntax: mat1.column_size()

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_size() method in Matrix
  
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat1 =  Matrix[[1, 21], [31, 18]]    
  
# prints the number of columns 
puts  mat1.column_size


Output:

2

Example 2:




# Ruby program for column_size() 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_size


Output:

3
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