直线拟合外推法判据和误差分析方法

The extended criterion of on the line fitting method and the way of analysing error

本文介绍了直线拟合法计算晶格常数时,所用外推函数能否应用的判据,并通过误差分析确定计算精确度,以使适当选择计算方法和外推函数。

It were introduced that the criterion witch if extended function can be apply, and the precisions were defined by analysing to the errors, so that calculated methods and extended functions were elected properly.