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  1. A = zeros(7, 7);
  2. A(1+0,1+0)= -1;
  3. A(1+1,1+0)= 1;
  4. A(1+0,1+1)= 1;
  5. A(1+1,1+1)= -2002;
  6. A(1+2,1+1)= 1;
  7. A(1+3,1+1)= 1000;
  8. A(1+4,1+1)= 1000;
  9. A(1+1,1+2)= 1;
  10. A(1+2,1+2)= -1;
  11. A(1+3,1+3)= -1000;
  12. A(1+1,1+3)= 1000;
  13. A(1+5,1+3)= -1;
  14. A(1+4,1+4)= -1000;
  15. A(1+1,1+4)= 1000;
  16. A(1+6,1+4)= -1;
  17. A(1+3,1+5)= 1;
  18. A(1+4,1+6)= 1;
  19.  
  20. x1 = [0,0,0,0,0,1,0]'
  21. x2 = [0,0,0,0,0,0,1]'
  22.  
  23. A^(-1)
  24.  
  25. A^(-1) * x1
  26. A^(-1) * x2
Success #stdin #stdout 0.11s 47180KB
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Standard input is empty
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x1 =

   0
   0
   0
   0
   0
   1
   0

x2 =

   0
   0
   0
   0
   0
   0
   1

ans =

 Columns 1 through 6:

    -1.00050    -0.00050    -0.00050     0.00000     0.00000    -0.50000
    -0.00050    -0.00050    -0.00050     0.00000     0.00000    -0.50000
    -0.00050    -0.00050    -1.00050     0.00000     0.00000    -0.50000
     0.00000     0.00000     0.00000     0.00000     0.00000    -1.00000
     0.00000     0.00000     0.00000     0.00000     0.00000     0.00000
     0.50000     0.50000     0.50000     1.00000     0.00000  -500.00000
     0.50000     0.50000     0.50000     0.00000     1.00000   500.00000

 Column 7:

    -0.50000
    -0.50000
    -0.50000
    -0.00000
    -1.00000
   500.00000
  -500.00000

ans =

    -0.50000
    -0.50000
    -0.50000
    -1.00000
     0.00000
  -500.00000
   500.00000

ans =

    -0.50000
    -0.50000
    -0.50000
     0.00000
    -1.00000
   500.00000
  -500.00000
https://ideone.com/sibI66
language:
Octave (octave 4.4.1)
created:
9 days ago
visibility:
public

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