Ruby | Matrix vstack() function

Ruby | Matrix trace() function

Last Updated : 07 Jan, 2020

The trace() is an inbuilt method in Ruby returns the trace i.e., sum of diagonal elements of the matrix.

Syntax: mat1.trace()

Parameters: The function needs the matrix whose trace is to be returned.

Return Value: It returns the trace.

Example 1:

# Ruby program for trace() method in Matrix 
  
# Include matrix  
require "matrix"
  
# Initialize a matrix  
mat1 = Matrix[[3, 12], [2, 8]]   
  
# Prints the trace 
puts  mat1.trace() 

Output:

Example 2:

# Ruby program for trace() method in Matrix 
  
# Include matrix  
require "matrix"
  
# Initialize a matrix  
mat1 = Matrix[[1, 0, 6], [6, 1, 7], [1, 2, 19]]    
  
# Prints the trace 
puts  mat1.trace() 

Output:

Ruby | Matrix vstack() function

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