本文以传热实验为例，比较了实验数据处理的作图法与最小二乘法，通过计算机处理数据，对最小二乘法进行了回归。

This article makes a comparison between the construction of data handling and the least square, taking the experience of heat transmission as an example.

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这种方法简单直观，兼有作图法与计算法的优点，并且将凸轮的计算机辅助设计与辅助制造融为一体。

This method is simple and audio-visual. It has advantages of the drawing and computing method, makes CAD to link with CAM of CAM.

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