📜  在 R 编程中获取矩阵行列式的模 - 行列式 ()函数

📅  最后修改于: 2022-05-13 01:54:20.775000             🧑  作者: Mango

在 R 编程中获取矩阵行列式的模 - 行列式 ()函数

R 语言中的determinant()函数是一个通用函数,它分别返回行列式的模数(可选地在对数刻度上)和行列式的符号。

示例 1:

# R program to illustrate
# determinant function
  
# Initializing a matrix with
# 3 rows and 3 columns
x <- matrix(c(3, 2, 6, -1, 7, 3, 2, 6, -1), 3, 3)
  
# Getting the matrix representation
x
  
# Calling the determinant() function
determinant(x)

输出:

[, 1] [, 2] [, 3]
[1, ]    3   -1    2
[2, ]    2    7    6
[3, ]    6    3   -1

$modulus
[1] 5.220356
attr(, "logarithm")
[1] TRUE

$sign
[1] -1

attr(, "class")
[1] "det"

示例 2:

# R program to illustrate
# determinant function
  
# Initializing a matrix with
# 2 rows and 2 columns
x <- matrix(c(1, 2, 3, 4), 2, 2)
  
# Getting the matrix representation
x
  
# Calling the determinant() function
determinant(x, logarithm = FALSE)

输出:

[, 1] [, 2]
[1, ]    1    3
[2, ]    2    4

$modulus
[1] 2
attr(, "logarithm")
[1] FALSE

$sign
[1] -1

attr(, "class")
[1] "det"