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Jul 18th, 2017
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MatLab 0.40 KB | None | 0 0
  1. >> A=2*[-3 2; 1 5]
  2.  
  3. A =
  4.  
  5.     -6     4
  6.      2    10
  7.  
  8. >> B=[-2 1; 3 3]-[1 0; 1 1]
  9.  
  10. B =
  11.  
  12.     -3     1
  13.      2     2
  14.  
  15. >> %teraz mamy A*X=B
  16. >> A^(-1)
  17.  
  18. ans =
  19.  
  20.    -0.1471    0.0588
  21.     0.0294    0.0882
  22.  
  23. >> A*A^(-1)
  24.  
  25. ans =
  26.  
  27.     1.0000         0
  28.    -0.0000    1.0000
  29.  
  30. >> %czyli macierz jednostkowa
  31. >> B*A^(-1)
  32.  
  33. ans =
  34.  
  35.     0.4706   -0.0882
  36.    -0.2353    0.2941
  37.  
  38. >> %i to jest nasz X
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