Ruby | Matrix t() 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

# 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

# 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 t() function

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