>> 
>> 
>> A1 = [2,-2,2,6;2,-1,2,4;3,-1,4,4;1,1,-1,3]

A1 =

     2    -2     2     6
     2    -1     2     4
     3    -1     4     4
     1     1    -1     3

>> 
>> b=[-16;-10;-11;-12]

b =

   -16
   -10
   -11
   -12

>> 
>> U0c = rref([A1,b])

U0c =

     1     0     0     0    11
     0     1     0     0    -8
     0     0     1     0    -6
     0     0     0     1    -7

>> 
>> 

 

求解结果:

 

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