In addition, Fourier finite difference operator is optimized desirably.
此外，本文对傅里叶有限差分算子作了必要的优化。
Clearly, the difference operator or sum operator is the convenient tool for the polynomial of factorial powers.
显然，差分算子及其逆算子是阶乘幂多项式的方便工具。
This paper proposes a new approach based on difference operator and region-growing to automatically recognize cell image.
为了实现血细胞图像的自动识别，提出了一种基于差分算子和区域增长的方法。
This method is based on the use of an "equivalent element medium" and the finite difference operator for an unsymmetrical star in anisotropic media.
在计算中引用了“等效单元介质”方法，采用各向异性介质中的不对称星形的差分算子计算程序。
In comparison with the differential operator and its inverse - integral operator, the difference operator and its inverse (sum operator) are discussed in this paper.
与微分算子及其逆算子积分算子作比较，讨论了差分算子及其逆算子(和分)。
Based on the skew direction difference operator, the implicit skew difference schemes were constructed, and the boundary condition was unified, to solve the diffusion equation.
采用斜向差分算子，建立斜向隐式差分格式，再结合边界条件，对扩散方程进行求解。
This paper presents an optimization of centered finite-difference operator based on the principle of constrained cost function, which can reduce the truncation error to minimum.
作者根据约束性代价函数原理提出了能够使得截断误差最小化的中心差分优化算子。
Fourier finite difference operator can be adopted to ensure good fidelity of seismic wave field in wave field continuation of complicated geology structure, bringing high quality image.
利用傅里叶有限差分算子可保证在复杂构造的波场延拓中，地震波场不失真，成像质量高。此外，本文对傅里叶有限差分算子作了必要的优化。
A fundamental difference exists between an enterprise operator and an enterprise designer.
企业经营者和企业设计师之间存在着根本区别。
The main difference between RPD and SHIP is that the RPD operator does not contain an SQL statement.
RPD与SHIP之间主要的不同在于，RPD操作符不包含sql语句。
The only difference is the use a Jython dictionary to hold name, value pairs within a String template while use % operator to evaluate this template into a String of meaningful SQL.
惟一的区别就是它使用Jython字典来保存String模板里的名称-值对，并使用%运算符来将该模板转换为有意义的sql字符串。
What is the difference between the unary minus operator and the binary subtraction operator?
一元操作符负号和二元操作符减号的区别是什么？
Note the difference between the equal sign (=) and the eq operator.
注意等于号（=）和eq操作符之间的区别。
The cause of retreatment was related to the unstable refraction in high degree myopia, the individual difference in reaction to laser, unstable energy of the machine and technique of the operator.
再手术原因与高度近视屈光状态不稳定、个体对激光反应的差异性、激光机能量不稳定及术者的操作技术有关。
Is there any difference in charge between IDD calls and operator call then?
国际直拨电话和总机转电话在付费方面有区别吗？
Both finite element method and discrete operator difference method can be pushed forward from which.
由该方程不仅可以得到有限元法，还可得到离散算子差分法。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
In this paper we propose so-called coupled 4-point difference schemes for the Laplacian operator over a class of parallel hexagon partitions of the plane.
本文提出平面上拉普拉斯算子在一类平行六边形网格上的成对4点差分格式。
A, open and close automatically in security and reliability according to hydraulic difference without noise and in no need of operator and maintenance.
根据水压差自动开启和关闭，安全可靠，无噪音，无需人员操作，无需维护。
According to the difference of operation time and operator, found a kind of component model (RSAE component model) that can unfold the component information from different aspects.
根据构件的操作时期和操作者的不同，制定一种能够分层展现构件信息的RSAE构件描述模型；
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
We improved FFD extrapolation operator to compensate the amplitude difference generated by geometry diffusion loss.
通过改进傅立叶有限差分的延拓算子，补偿了几何扩散损失引起的振幅误差。
The difference between the minimum expectation and the expectation operator is shown.
指出了最小数学期望算子与数学期望算子的某些不同之处。
We present some usual numerical methods including Finite-Difference method, Split-Operator method and Time-independent-Scattering-Matrix etc.
我们介绍了一些常用的数值模拟方法，包括含时有限差分法、劈裂算符法、不含时散射矩阵法等。
We present some usual numerical methods including Finite-Difference method, Split-Operator method and Time-independent-Scattering-Matrix etc.
我们介绍了一些常用的数值模拟方法，包括含时有限差分法、劈裂算符法、不含时散射矩阵法等。
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