例1.22.txt

《MATLAB在控制系统中的应用》实例程序

 例1.22   矩阵的乘方。
>> A=[10 15; 20 25]
A =
    	10    15
    	20    25
>> B=[1 4 7; 2 5 8]
B =
     1     4     7
     2     5     8
>> C1=A^2
C1 =
   	400   525
   	700   925
>> C2=A*A
C2 =
   	400   525
   	700   925
>> C3=A^0.5
C3 =
   	1.8173 + 0.8192i   2.3965 - 0.4659i
   	3.1954 - 0.6212i   4.2138 + 0.3533i
>> C4=1.2^A
C4 =
  	229.2159  301.2474
  	401.6631  530.4633
>> C5=B^2
??? Error using ==> ^
Matrix must be square.