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Ruby | Matrix row_size() function

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The row_size() is an inbuilt method in Ruby returns the number of rows in the given matrix.

Syntax: mat1.row_size()

Parameters: The function does not takes any mandatory parameter.

Return Value: It returns the number of rows in the matrix.

Example 1:




# Ruby program for row_size() method in Matrix
  
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat1 = Matrix[[6, 432], [54, 323]]  
  
# Prints the number of rows
puts  mat1.row_size()


Output:

2

Example 2:




# Ruby program for row_size() method in Matrix
  
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat1 = Matrix[[1, 1, 1],[2, 2, 2],[3, 5, 6]]  
  
# Prints the number of rows
puts  mat1.row_size()


Output:

3

Last Updated : 07 Jan, 2020
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