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