在 R 编程中检查矩阵是否对称 – isSymmetric()函数
R 语言中的isSymmetric()
函数用于检查矩阵是否为对称矩阵。对称矩阵是其转置等于矩阵本身的矩阵。
Syntax: isSymmetric(x)
Parameters:
x: Matrix to be checked
示例 1:
# R program to check if
# a matrix is symmetric
# Creating a diagonal matrix
x1 <- diag(3)
# Creating a matrix
x2 <- matrix(c(1, 2, 2, 3), 2)
# Calling isSymmetric() function
isSymmetric(x1)
isSymmetric(x2)
输出:
[1] TRUE
[1] TRUE
示例 2:
# R program to check if
# a matrix is symmetric
# Creating a matrix
x1 <- matrix(c(1:9), 3, 3)
# Calling isSymmetric() function
isSymmetric(x1)
输出:
[1] FALSE