Ruby | Matrix vstack() function

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 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 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]]