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31. QR decomposition can improve the condition number of a matrix and then improve the numerical stability.

32. This year, we added a design element to the QR codes.

33. At the same ti me , its corresponding QR factorization method was also presented.

34. There are two kinds of method to calculate the eigenvalues of a matrix:characteristic polynomial method and QR method.

35. The bilinear interpolation algorithm is used to correct the distorted QR code and then repair the image with morphology.

36. QR is the dominant technical standard, but there are more out there which may confuse businesses and customers.

37. This all could change with the use of QR codes.