%10-40  ﷨
%ֳܼõ﷨Enterȷϡ
>> min(x,y)
??? Undefined function or variable 'x'.                 %ʹûı
>>
%Enterȷϡ
>> x=0;y=-9;
>> y=minimun(x,y)
??? Undefined command/function 'minimun'.         %ʹûĺ    
>>
%Enterȷϡ
>> A=ones(3)
A =
     1     1     1
     1     1     1
     1     1     1
>> B=magic(4)
B =
    16     2     3    13
     5    11    10     8
     9     7     6    12
     4    14    15     1
>> C=A*b
??? Undefined function or variable 'b'.               %ʹûı     
>> C=A*B
??? Error using ==> mtimes
Inner matrix dimensions must agree.                 %Ľ
>>
