Ruby | Matrix scalar() function

Ruby | Matrix vstack() function

Last Updated : 07 Jan, 2020

The vstack() is an inbuilt method in Ruby returns a new matrix resulting by stacking vertically the receiver with the given matrices. It requires a matrix which is stacked upon vertically.

Syntax: mat1.vstack(mat2) Parameters: The function needs a matrix which is to be stacked vertically. Return Value: It returns resultant matrix after stacking is done.

Example 1:

Ruby

# Ruby program for vstack() method in Matrix
 
# Include matrix 
require "matrix"
 
# Initialize a matrix 
mat1 =  Matrix[[1, 21], [31, 18]]
mat2 =  Matrix[[4, 6], [3, 9]]
 
# prints the resultant matrix 
puts  mat1.vstack(mat2)

Output:

Matrix[[1, 21], [31, 18], [4, 6], [3, 9]]

Example 2:

Ruby

# Ruby program for vstack() method in Matrix
 
# Include matrix 
require "matrix"
 
# Initialize a matrix 
mat1 =  Matrix[[3, 5, 9], [10, 19, 123]]
mat2 =  Matrix[[12, 12, 13], [19, 18, 89]]
 
# prints the resultant matrix 
puts  mat1.vstack(mat2)

Output:

Matrix[[3, 5, 9], [10, 19, 123], [12, 12, 13], [19, 18, 89]]

Ruby | Matrix scalar() function

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