微分,differential
1)differential[英][,d?f?'ren?l][美]['d?f?'r?n??l]微分
1.Training students changing mode of thinking by differential teaching in college Physics;在大学物理中用微分培养变化的思维方式
2.Some studies for teaching differential mean-value theorems;微分中值定理教学改革探讨
英文短句/例句

1.fractional differentiation分数微分(法),分数次微分
2.alternating differential of differential form微分形式的交错微分
3.implicit differentiation隐函数微分,隐微分
4.Of or relating to differentiation.微分微分的、与微分学有关的
5.differential interference contrast microscope微分干涉相差显微镜
6.ODE,SDE and PDE常微、偏微及随机微分方程(英文)
7.topological differential geometry拓扑微分几何(学)
8.The combined mathematics of differential calculus and integral calculus.微积分微分学和积分学的结合
9.MADDAM (Micromodule and Digital Differential Analyzer Machine)微型组件及数字微分分析机
10.To calculate the derivative or differential of(a function).求…的微分计算导数或(函数的)微分
11.The mid-value theorems is the basic theorems in the calculus.微分中值定理是微分学中的基本定理。
12.A New Method to Figure Out Differential Equation: Differential Arithmetic Operators Progression Method;微分方程的新解法——微分算子级数法
13.Differential Transformation Method for Solving Nonlinear Differential Equations非线性微分方程的微分变换方法(英文)
14.magnetic drum digital differential analyzer磁鼓数字微分分析器
15.integral-derivative action controller积分-微分作用控制器
16.integral-derivative action control积分-微分作用控制
17.proportional-integral-differential control actio比例积分微分控制作用
18.proportional plus integral plus derivative action;比例积分微分作用;
相关短句/例句

Differentiation[英][,dif?,ren?i'ei??n][美][,d?f?,r?n?i'e??n]微分
1.Stochastic finite element method based on automatic differentiation;基于自动微分的随机有限元方法
2.On the differentiation of a function of p-adic variable;关于p-adic变量函数的微分(英文)
3.Introduces the application of differentiation theory with comparison method in spring design and manufacture.介绍了将微分理论应用于弹簧设计、制造上的方法。
3)differential calculus微分
1.0 in to rectangle pulse through differential calculus electric circuit empress,it pointed out the artificial theories to look like analyticly and experiments really imitate dependable.从频域的角度对RC微分电路进行了分析,在Matlab7。
2.In this paper,by the means of the properties of the differential calculous,the authors had obtained the proofs of the generalizations of the two basic inequalities;and the apply of the differential calculus in the proofs of inequalities.本文主要介绍高等数学知识———微积分的一些基本性质在证明不等式中的应用 ,利用微分法证明了中学最重要的两个基本不等式的推广形式和一道奥赛
3.The differential calculus of the pluralistic function is both the key and difficult point in higher mathematics.多元函数微分学是高等数学教学的重点和难点之一。
4)derivative[英][d?'r?v?t?v][美][d?'r?v?t?v]微分
1.Near Infrared Spectra (NIR) Analysis of Octane Number by WaveletDenoising-Derivative Method;结合小波变换与微分法改善近红外光谱分析精度
2.This paper analyzed the derivative MMM signal of pre-welding cracks,extracted the location feature of welding cracks and founded the quantitative relation between derivative MMM signal and parameters of welding cracks.针对金属磁记忆检测技术目前尚不能对焊接裂纹进行定量的评价的问题,通过对预制焊接裂纹一阶微分后的金属磁记忆信号进行分析,找出了焊接裂纹存在定位特征,并且建立了微分后的磁记忆信号与焊接裂纹的长度及埋深的定量关系。
3.Derivative spectrum technique was applied to enhance the wheat canopy reflectance responsibility to different N levels.采用微分技术处理了小麦冠层反射光谱,提高了其区分小麦氮素营养水平的灵敏性;利用F-检验及方差分析与相关分析,研究小麦氮素处理水平、冠层反射光谱及其衍生信息(光谱反射率的一阶微分数据、归一化植被指数)、小麦产量三者之间的相关关系。
5)derivation[英][,der?'ve??n][美]['d?r?'ve??n]微分
1.This paper expounds the importance scientific sublation plays in inducing the formulae of derivation and physical entropy,and examines the interrelation and relevance of entropy in different fields.以微分和物理熵为例 ,说明在演算推导其算式与结论时 ,科学扬弃的重要作用以及熵在不同领域应用的相互关系与联
6)differential analysis微分分析
延伸阅读

微分微分differential数学基本概念之一。如果函数yf(x)在x点的增量Δyf(x+Δx)-f(x)能表为ΔyA·Δx+0(Δx),其中A是一个与Δx无关的数,第二项0(Δx)表示当Δx→0时比Δx高阶的无穷小量,即0(Δx)趋于0的速度比Δx趋于0的速度要快,则称A·Δxfx点的微分,记为dy或df(x),并说函数在x点可微。因为自变量x的微分dx=Δx,所以又常把A·Δx记为A·dx。由0(Δx)的意义可知,Δy≈dy。比如半径为r的圆面积Sπr2,若半径增大Δr,则面积增量(即圆环面积)ΔSπ(r+Δr)2-πr2=2πr·Δrπr)2。显然,当Δr→0时,πr)2趋于0的速度比Δr趋于0的速度要快得多,因此ΔS≈2πr·Δr=dS。它的几何意义是:圆环面积近似等于2πr·Δr。取r=1,Δr=0.01,则ΔS=2π·10-2+π·10-4≈2π·10-2。这样做的好处是与线性函数(即一次函数)有类似的方便,能简单地计算Δy的近似值。也正是因为dy在形上为Δx的线性函数,又是函数增量Δy的主要部分,所以函数在x点的微分dy是Δy的线性主部。函数yf(x)在x点可微的充要条件是它在x点有导数y′=f(x),而且dyf′(x)·dx。因此函数在x点可导与可微是一致的,不必严格区分,有时也把求导运算说成是进行微分运算。微分在近似计算中有重要作用。它是估计函数增量的有力工具。例如,y=sinx的微分dy=cosx·dx,所以从Δy≈dy知,当|Δx|很小时,sin(x+Δx)≈sinx+cosx·Δx。为求sin31°的近似值,可取x=30°=,Δx=1°=≈0.01745,得到sin31°≈sin+cos·=0.5+×0.01745≈0.5151。特别地,若取x=0,记h=Δx,则有sinhh