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Nov 12th, 2019
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  1. %LUv1
  2. %[L,U]=lu(A)
  3. %lu1=inv(U)*inv(L)*b
  4.  
  5. %LUv2
  6. %[L,U]=lu(A)
  7. %ylu2=inv(L)*b
  8. %xlu2=inv(U)*ylu2
  9.  
  10. %QR
  11. %[q,r] = qr(A)
  12. %xgr=inv(r)*q'*B
  13.  
  14. %QR2
  15. %[Q, R]=qr(A)
  16. %xqr2=inv(R)*Q'*B
  17.  
  18. %SVD
  19. %[U, S, V]=svd(A);
  20. %xsvd=inv(V)*inv(S)*U'*B
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