Find the power of a matrix in R

In this article, we are going to see how to compute the power of a matrix in R Programming Language. Matrix is an arrangement of numbers into rows and columns.

Different ways of finding the power of matrix in R programming:

• By using %^%.
• By using a power function.

Method 1: By using %^%

Before using this we need to import expm library into our R studio.

Installing expm library into R studio:

Step 1: First you need to select tools.

Step 2: After selecting the tool you need to press install packages:

Below is the implementation:

We Import the expm and assigned values into the mat by using the matrix function. After that, we are finding the power of the matrix.

R

# loading expm library
library(expm)

# creating mat variable and storing
# matrix into it.
mat <- matrix(1:9, nrow=3)

# In matrix function data will fill column wise,
# here data will be 1 to 9 as we mentioned 1:9
# and rows will be 3 as we given nrows as 3

# finding power of matrix here power is 4
mat %^% 4

Output:

Method 2: By using a power function.

For using the power function we need to install matrixcalc package into our Rstudio

Below is the implementation:

Here we import the matrixcalc and assigned values into the mat by using matrix function. After that, we are finding the power of matrix by using power function.

R

# loading package
require(matrixcalc)

# creating matrix.
a<- matrix(1 : 9, nrow = 3)

# finding power of matrix by using power function.
# In matrix function data will fill column wise,
# here data will be 1 to 9 as we mentioned 1:9
# and rows will be 3 as we given nrows as 3
matrix.power(a, 9)

Output: