To get the bestfittingline, you find the line that minimizes the sum of squared distances.
要找到最切合的直线,就是要使,这些距离的平方和最小。
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In this letter some problems in calculation and conception of the paper" A New Method for Calculating the BestFittingLine of the Transduce Based on K-L Expansion Equation- are discussed."
This series of lines has the characteristic of one machine with many USES. It just needs changing some fitting like extruding mold, the line can produce 2-3 types of pipes, making best of equipments.