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Ruby | Matrix [] method

Last Updated : 12 Jul, 2025
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The []() is an inbuilt method in Ruby returns the element at the i-th row and the j-th column.
Syntax: mat1[i, j] Parameters: The function needs the row number i and column number j whose position element is to be returned. Return Value: It returns the element at the position mat[i][j].
Example 1: Ruby
# Ruby program for [] method in Matrix
 
# Include matrix 
require "matrix"
 
# Initialize a matrix 
mat1 = Matrix[[1, 21], [31, 18]]  
 
# Print the element at 1,1
puts  mat1[1, 1]
Output:
18
Example 2: Ruby
# Ruby program for [] method in Matrix
 
# Include matrix 
require "matrix"
 
# Initialize a matrix 
mat1 = Matrix[[89 , 12, 12], [8, 5, 23], [1, 2, 9]]  
 
# Print the element at 2,3
puts  mat1[2, 2]
Output:
9

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