大学物理实验
大學物理實驗
대학물리실험
PHYSICAL EXPERIMENT OF COLLEGE
2013年
3期
63-65
,共3页
物理量%单位的智能导出%单位换算%国际标准单位%数据库调用技术
物理量%單位的智能導齣%單位換算%國際標準單位%數據庫調用技術
물리량%단위적지능도출%단위환산%국제표준단위%수거고조용기술
physical quantities%intelligent derivation for physical unit%unit conversion%SI units%data-base call technology
推导物理量的单位是物理作业中不可缺少的重要环节。提出一种物理量单位的智能导出算法，即计算机根据物理量的运算式自动推导出待求物理量的单位。实验结果表明，物理量单位导出及换算算法的结果正确，对算术运算式中的物理量单位导出及换算的正确率为100％，且物理量数值的运算正确。
推導物理量的單位是物理作業中不可缺少的重要環節。提齣一種物理量單位的智能導齣算法，即計算機根據物理量的運算式自動推導齣待求物理量的單位。實驗結果錶明，物理量單位導齣及換算算法的結果正確，對算術運算式中的物理量單位導齣及換算的正確率為100％，且物理量數值的運算正確。
추도물리량적단위시물리작업중불가결소적중요배절。제출일충물리량단위적지능도출산법，즉계산궤근거물리량적운산식자동추도출대구물리량적단위。실험결과표명，물리량단위도출급환산산법적결과정학，대산술운산식중적물리량단위도출급환산적정학솔위100％，차물리량수치적운산정학。
Derivation of units of physical quantities are important and indispensable part of the physics homework.An intelligent derivation algorithm for physical quantities units is proposed,that computer automatically derived units of unknown physical quantities from the arithmetic expression of known physical quantities.Convert division expressions to multiplication expressions by unit index symbol transform,uniform units of the same dimension through unit conversion,evaluate index algebraic sum for the same unit to get final derived units of unknown physical quantities.Performing unit conversion to the rest units toward the units with the largest number or SI units in the same dimension is auto-matically finished by database call technology.Experimental results on arithmetic expressions with numbers and units show that the operation results of the algorithm are correct with correct rate of 100%.
