Ruby | Matrix column() function

The column() is an inbuilt method in Ruby returns a vector that has all the elements in the column number col_num.

Syntax: mat1.column(col_num)

Parameters: The function accepts a parameter col_num which is the column number.



Return Value: It returns a vector which has all the elements of column col_num.

Example 1:

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# Ruby program for column() method in Matrix
  
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat1 =  Matrix[[1, 21], [31, 18]]  
  
# Prints the value of mat1.column
puts  mat1.column(1)

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Output:

Vector[21, 18]

Example 2:

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# Ruby program for column() method in Matrix
  
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat1 = Matrix[[13, 1, 5], [12, 1, 5], [11, 2, 5]]  
  
# Prints the value of mat1.column
puts  mat1.column(1)

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Output:

Vector[1, 1, 2]


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