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:

# 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)

Output:

Vector[21, 18]

Example 2:

# 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)

Output:

Vector[1, 1, 2]