matlab矩陣運算——乘法、除法學習

矩陣乘法、除法

>> A1=[1,3,1;2,0,4;2,1,2]

A1 =

     1     3     1
     2     0     4
     2     1     2

>> 
>> 
>> 
>> A2=[3,0,3;2,1,2;4,2,0]

A2 =

     3     0     3
     2     1     2
     4     2     0

>> 
>> A3=A1*A2

A3 =

    13     5     9
    22     8     6
    16     5     8

>> 
>> 
>> 
>> A3/A2

ans =

     1     3     1
     2     0     4
     2     1     2

>> 
>> 
>> A3/A1

ans =

   -1.4000   -2.0000    9.2000
   -4.4000   -8.0000   21.2000
   -2.8000   -4.0000   13.4000

>> 
>>