红宝石 |矩阵lower_triangular?函数
lower_triangular?()是 Ruby 中的一个内置方法,返回一个布尔值。如果是下三角矩阵则返回真,否则返回假。
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.
示例 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
? ()
输出:
false
示例 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
? ()
输出:
true