Ruby | Matrix lower_triangular? function
Last Updated :
07 Jan, 2020
The lower_triangular?() is an inbuilt method in Ruby returns a boolean value. It returns true if it is a lower-triangular matrix, else it returns false.
Syntax: mat1.lower_triangular?()
Parameters: The function needs the matrix to be checked for lower-triangular.
Return Value: It returns true if it is a lower-triangular matrix, else it returns false.
Example 1:
#Ruby program for lower_triangular ? () method in Matrix
#Include matrix
require "matrix"
#Initialize a matrix
mat1
= Matrix[[ 1, 21 ], [ 31, 18 ]]
#Prints if lower_triangular or not
puts mat1.lower_triangular
? ()
|
Output:
false
Example 2:
#Ruby program for lower_triangular ? () method in Matrix
#Include matrix
require "matrix"
#Initialize a matrix
mat1
= Matrix[[ 1, 0, 0 ], [ 2, 3, 0 ], [ 31, 18, 19 ]]
#Prints if lower_triangular or not
puts mat1.lower_triangular
? ()
|
Output:
true
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