作图法与最小二乘法处理数据时的误差分析

Analysis of significant figures when process the data with graphology and least squares fitting

运用有效数字的运算规则进行计算时 ,作图法和最小二乘法在保留有效数字问题上会出现较大的差异 .对此进行分析后 ,得出有效数字的保留问题应归结于误差的大小情况 .

This paper presented that the least squares fitting is more accurately than the graphology in processing the data with calculating rules of significant figures. Through analyzed error for it,finally, we might affirm that the problem of retaining the significant figures base on a high or low number of the error.