欧拉数,Euler number
1)Euler number欧拉数
1.The overflowEuler number ( Eu o) and the underflowEuler number ( Eu u) are defined.定义了旋流管的溢流欧拉数Euo 和底流欧拉数Euu。
2.In this paper,an approach to computeEuler number based on foreground run is formulated.文中用基于图段的方法计算欧拉数,并对该算法的时空复杂度进行分析比较。
3.Euler number of image is one of the most important characteristics in digital topology.图像欧拉数是数字拓扑学的重要特征参数之一,为了更好地理解欧拉数的本质,对二值图像连通性进行研究,在定义图段和相邻数两个基本概念的基础上,提出了图像欧拉数与图段相邻数的关系公式。
英文短句/例句
1.Some Identities Involving Bernoulli Polynomials and Euler Number关于贝努利多项式与欧拉数的几个恒等式
2.Equivalence of Two Identities Involving Eulerian Numbers两个包含欧拉数的恒等式的等价性(英文)
puting Euler number of global discrete grids based on diamond基于菱形块的全球离散格网欧拉数计算
4.Euler-Poincare characteristic欧拉－庞伽勒示性数
5.Study on Harmonic Series and Euler Constant by Mathmatica;利用Mathematica研究调和级数与欧拉常数
6.Enumeration of Eulerian Maps on the Torus环面上有根欧拉地图的计数(英文)
7.Spreading of Euler Formula on Indifferential Homogeneous Functions;欧拉公式在不可微齐次函数中的推广
8.The Newly Exploration of the Euler’s Constant γand Its Simple Applications;欧拉常数γ性质的简单推广及其应用
9.A Degree-Sum Condition for Edge-Supereulerian Graphs边-超欧拉图的一个度数和条件(英文)
10.So, dual Euler method is better than quaternion method in the solution of the singularity of the Euler equation.因此，对于解决欧拉方程奇异性来讲，双欧法要优于四元数法。
11.This paper studies comparatively dual Euler method and quaternion method which are used for the solution of the singularity of the Euler equation.对解决欧拉方程奇异性的双欧法和四元数法进行了对比研究。
12.Neither Eular circuit nor Eular path exists in this graph, since there are more than two vertices with odd degree.这个图既没有欧拉回路，也没有欧拉路径。因为有超过两个顶点的度数为奇数。
13.The horse-drawn plough is now obsolete in most European countries.马拉的犁在欧洲多数国家均已不再使用.
parative Coefficient Ways in Resolving Special Type Non-homogeneous Euler Equation特殊类型的欧拉非齐方程的比较系数法
15.A New Large-scale Transformation Algorithm of Quaternion to Euler Angle一种新的全角度四元数与欧拉角的转换算法
16.The numerical solution of Euler equations is provided as flowsolver.翼型的流场解由欧拉方程的数值解提供。
17.The Radial Basis Function Based High Resolution Scheme for Euler Equations;欧拉方程基于径向基函数的高分辨率格式研究
18.From the Process of Euler Solving the Problem about Seven Bridge to See the Method to Solve Maths Problem;从欧拉解决七桥问题看数学问题解决方法
相关短句/例句
Euler numbers欧拉数
1.This paper makes an approach to the relationship between Dai Xu numbers andEuler numbers.研究戴煦数与欧拉数之间的关系。
2.This article briefly introduces Leonhard Euler and his work in special numbers,and gives a new relationship between the two kinds ofEuler numbers as well as a new identity about the second kind ofEuler numbers.简要介绍了欧拉及其在特殊数领域所做的工作,给出并证明了两类欧拉数之间的一个新关系式,以及第二类欧拉数的一个新恒等式。
3.In this paper,the author use the method of generating function,studied the relation between function secx and Euler Numbers,obtained some identities aboutEuler numbers.利用生成函数法研究了正割函数与欧拉数的关系,得到了几个关于欧拉数的有趣的恒等式。
3)Euler parameter欧拉参数
1.Based on the data of GPS and seismic moment tensor and considered tectonic motion within the Chinese continent thoroughly,the euler parameters of main-plates in Chinese continent are studied through joint inversion method.将两种观测数据的相对权比同欧拉参数一同作为反演参数,利用联合反演模型和优化方法,合理地提取了观测数据中的块体运动信息。
4)Euler function欧拉函数
1.The Realization and Application of the Algorithm of the Euler Function;欧拉函数算法实现及其应用
2.If x≥1 and k as a negative whole number,the paper presented two estima- tion formulas:(x)=(u),formula on the sum of k power ofEuler function (u) and Ψ(x)=xlogx++O(logx)formula[noted:c_4=(1/plog(1-1/p))-1p as a prime number]on the sum of logarithm ofEuler function.探讨了当 x≥1,k 为负整数时,欧拉函数(n)的 k 次方和的估计式,并得到欧拉函数对数和的估计式:式中,p 为素数,求和号∑下的 p 过全体素数。
3.A new password authentication scheme is proposed after introducing the famous Sunzi theorem andEuler function.在介绍著名的孙子定理和欧拉函数的基础上,提出了一种新的口令验证方案。
5)Euler totient function欧拉函数
1.There has been a lot of investigations on arithmetic functions σ and φ,where φ(n) isEuler totient function and σ(n) is the sum of divisors of n.设φ(n)表示n的欧拉函数,σ(n)表示n的所有正因子和,ω(n)表示n的不同素因子的个数。
2.There are a lot of investigations on arithmetic functions: and , where (n) isEuler totient function and o (n) is the sum of divisors of n.设φ(n)表示n的欧拉函数，σ(n)表示n的所有正因子和，ω(n)表示n的不同素因子的个数。
6)Euler number欧拉数Eu
延伸阅读
欧拉数Eu分子式：CAS号：性质：反映流体流动时压力影响的无因次数群，以符合Eu或NEu表示。它由三个物理量组成，即Eu=△p/ρν2。式中ν为流体的流速，m/s；△ρ为流体的密度，kg/m3；△ρ为流体的压力，N/m2。
