红宝石 |矩阵 - 方法

–是 Ruby 中的一个内置方法，它返回一个矩阵，该矩阵具有两个矩阵 mat1 和 mat2 的减法。

Syntax: mat1 – mat2

Parameters: The function need two matrix mat1 and mat2 which are to be subtracted.

Return Value: It returns the resultant matrix after subtraction.

示例 1 ：

# Ruby program for - method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 = Matrix[[1, 2, 6], [3, 4, 8], [12, 1, 3]] 
mat2 = Matrix[[1, 2, 6], [3, 4, 8], [12, 1, 3]] 
   
# Prints the value of mat1+mat2
puts  mat1 - mat2

输出：

Matrix[[0, 0, 0], [0, 0, 0], [0, 0, 0]]

示例 2 ：

# Ruby program for - method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 = Matrix[[1, 21, 6], [31,124, 18]] 
mat2 = Matrix[[1, 12, 16], [31, 43, 28]]  
   
# Prints the value of mat1 - mat2
puts  mat1 - mat2

输出：

Matrix[[0, 9, -10], [0, 81, -10]]