摘要
本文主要依据GB/T8170-2008《数值修约规则与极限数值的表示和判定》,对林产品检测中的有效数字、数值修约及其运算规则等问题进行探讨,分析过去常用的"四舍五入"修约方法的不足,讨论了"四舍六入五凑双"的合理性,并提倡先计算后修约的运算规则,既可简化繁琐的修约步骤,又保证检测数据的准确性,同时提高了检测工作的效率。
Based on related contents of GB/T 8170 2008 Rules of rounding off for numerical values expression and judgment of limiting values,the significant digits,rounding off numerical values and operation rules for forest products detection were investigated in this paper.The shortages of rounding off numerical values which was commonly used in the past were analyzed,while the rationalities of rounding off to the nearest whole number were discussed.Rounding off numerical values by rounding after calculated was advocated.Through this way,the procedure can be simplified and the accuracy of data and the work efficiency of detection can be improved.
出处
《湖北林业科技》
2015年第6期32-34,59,共4页
Hubei Forestry Science and Technology
基金
湖北省林业科技支撑重点项目"重组竹结构用材制造及关键技术研究"(LYKJZC201208)资助
关键词
林产品检测
有效数字
数值修约
四舍六入五凑双
运算规则
forest products detection
significant digits
rounding off numerical values
rounding off to the nearest whole number gather together to double
operation rules
