数学计算

• After getting the experiment data , the resistance value and the deviation value of compensation voltage can be calculated by the two algorithms which can be realized by vb program language and math software such as matlab and maple
  得到采集数据以后,通过vb编程语言, matlab和maple数学计算软件编程,利用最小二乘法和最佳一致逼近算法,计算出补偿网络的电阻参数和补偿电压的拟合差值。
• The interior temperature distribution and ablation model of projectile wing is established from general transmitting heat differential equation ; at the same time , the heat flow density and pressure distribution model of projectile wing is also established
  从一般形式的导热微分方程出发，逐步建立了弹翼内部温度分布和烧蚀的数学计算模型；与此同时，建立了弹翼表面的热流密度和压力分布的数学模型。
• Through comparing the prediction result with that of traditional software growth reliability models , it could be seen that the double exponential smoothing technique not only was simple without complicated computation but also was able to provide more accurate prediction
  通过同传统软件可靠性增长模型的预测结果进行比较，可以看出双指数平滑方法简单，没有复杂的数学计算，而且对通信软件的失效行为的预测更加准确。
• Finally we simulate and calculate a definite transportation network of nanjing by matured math tool - matlab joining theory of chart and network with analysis and conclusion . experiences show that efficiency theory of swn can aid the building and evaluation of real network well
  然后结合运筹学中图论和网络的理论方法，利用成熟的数学计算语言matlab ，对一具体的南京市公交网络图进行了仿真和计算，并对此给出分析和结论。
• Several verifications are performed to examine the accuracy of the numerical model of the extended mild - slope equation at simulating wave refraction , diffraction and reflection on some representative topographies and good agreement has been achieved
  针对多个典型地形按本文研制出的数学模式进行了波浪折射、绕射和反射的验证计算，数学计算结果和理论解或实验值吻合程度良好，说明本文的模式能很好地反映波浪的折射、绕射和反射现象。
• This paper is to illustrate the safety and necessity of the technique application , to sum up the best co2 concentration and best time and to analyze the temperature distribution of standby facilities based on the results of study , experiments , analysis and mathematics calculation
  本文在大量学习、实验、分析及数学计算的基础上，说明了该技术应用的必要性及安全性，总结出增施二氧化碳的最佳浓度及增施时间，分析了兼用设备的温度分布。
• By way of theoretical analysis , the relationship between settling angle on a planar curve and the polar coordinates of the same curve was obtained , and the polar equation of a curve that passed through two fixed points and had the specified directions at these two points was also derived
  摘要通过理论分析与数学计算获得了平面曲线上任一点处安放角与曲线极坐标方程的关系，同时导出了通过平面上两定点且在两定点处有给定方向的曲线的极坐标插值方程。
• Cthe method of establishment of spatial analysis information system about water resource in longkou city based on water experiment and observational data and special map , spatial database and attributive database of water resource is established with arc / info7 . 1 ~ arcview3 . 1 ~ photoshop5 . o ~ idrisi2 . o ~ . visual foxpro5 . o . taking horton geomorphology and valdes geomorphicly immectiate unit hydrograph ( g theory ) as theory direction , the database is analyzed and mathematical models is found . linking basic database and model database , that spatial database and attributive database of water resource is established
  龙口市水资源时空分析信息系统构建的方法以水利实验、观测数据和专题地图等资料为基础数据，在arc / info7 . 1 、 arcview3 . 0 、 photoshop5 . 0 、 idrisi2 . 0 、 visualfoxpro5 . 0技术支持下，构建起水资源空间数据库和属性数据库；以g理论和horton地貌律为理论指导，进行数据库分析，并建立水资源数学计算模型，即模型库构建；将基础数据库和数学模型库藕合在一起，建立起龙口市水资源时空分析信息系统。
• Of course , as for the questions in the breakdown of natural science , too uncommon and boring mathematical calculation can influence your activity , therefore i ask interesting and practical questions , such as creatural diesel oil , using of straw , recycle of rubbish , resource insect cultivation , as far as possible
  当然，对于自然科学版里的问题，太生僻、枯燥的数学计算会影响大家的积极性，所以我尽量提问有趣的、实用性较强的题目，譬如生物柴油、秸秆利用、白色污染以及垃圾回收、资源昆虫养殖等。