红宝石 |矩阵**法

**是 Ruby 中的内置方法，在矩阵与自身相乘 N 次后返回矩阵。它返回矩阵求幂值。

Syntax: Matrix_name ** (number)

Parameters: The function takes a mandatory parameter number which signifies the number of times it will be multiplied with self.

Return Value: It returns the resultant matrix after multiplication.

示例 1 ：

# Ruby program for ** method in Matrix
# Include matrix 
require "matrix"
  
# Initialize a matrix 
mat = Matrix[[12,41], [61,81]] 
  
# Prints the matrix value after 
# multiplying it 3 times with self 
puts  mat ** 3

输出：

Matrix[[264333, 417298], [620858, 966615]]

示例 2 ：

# Ruby program for ** method in Matrix
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat = Matrix[[1, 2, 6], [3, 4, 8], [12, 1, 3]] 
   
# Prints the matrix value after 
# multiplying it 2 times with self 
puts  mat ** 2

输出：

Matrix[[79, 16, 40], [111, 30, 74], [51, 31, 89]]