%10-38  cputimeʹþ
>> t = cputime; 
>> A=magic(4)*rand(4)
A =
         13.92         11.18          5.87         15.41
         13.53         16.57         13.64         14.08
         13.61         14.07         10.59         15.08
         13.68         18.67         15.00         12.40
>> e=cputime-t
e =
          0.61
>>
