The partial differentiations and derivatives are introduced for multivariate finite discrete functions, and the properties of which are discussed.
对多元有限离散函数引入了偏导数及微分新概念，并讨论了其性质。
By using nonstandard analysis, we define new generalized functions as discrete functions, and their derivatives are defined as difference quotients.
在非标准分析框架下，用离散函数定义新广义函数，用差商定义其导数。
In the past decade especially, advanced technologies for capturing a snapshot of the brain in action have confirmed that discrete functions occur in specific locations.
特别是过去的十几年间，用先进的科技拍摄的大脑活动的快照已经证明了单个的功能发生在特定的区域。
In this paper discrete spectra and their characteristic functions of slow waves in barotropic models are calculated.
本文对正压模式中慢波的离散谱及其特征函数作了数值计算。
SP is a portable, strongly-typed, event-oriented, discrete system simulation language, It is derived from PASCAL by adding some simulation functions.
SP语言是可移植、强类型、面向事件的离散系统模拟语言，是以PASCAL语言为基础进行模拟功能扩充而形成的。
The two functions we have now can sample from any discrete distribution and one -dimensional continuous distribution.
目前拥有的两个函数可以完成任意离散分布和任意一元连续分布的抽样。
Variable characteristics were captured in discrete cosine transform (DCT) domain of JPEG images and from their decompressed versions with these functions.
这些函数从JPEG图像离散余弦变换(DCT)域及其解压图像所在空域中提取易变特征。
In this paper, error estimations on the derivatives of finite orders for continuous and discrete forms of smoothing functions, are given.
本文对磨光函数的连续形式及离散形式给出了各阶导数的误差估计。
Actually the kernel design in the recognition method based on discrete time - frequency representation is a problem of feature selection from the ambiguity functions to reduce feature dimension.
基于离散时频分布的信号识别方法，将时频核设计问题转化为以信号自模糊函数为原始特征的特征选择问题，以实现特征降维和信号识别。
The improved AFT algorithms for even and odd functions can also be used for computing discrete cosine transform (DCT) and discrete sine transform (DST), respectively.
本文改进的偶函数和奇函数的AFT算法还分别可以用来计算离散余弦变换(DCT)和离散正弦变换(DST)。
Based on the generalized sine and cosine functions in the triangular domain, the discrete generalized sine and cosine transform are defined.
在三角区域的广义正弦函数和广义余弦函数基础上，定义了三角区域的离散广义正弦变换和离散广义余弦变换。
Several discrete watchdogs are available combined with other useful functions, such as real-time clocks and supervisory functions.
几个离散的监督者可结合其他有用的功能，例如实时时钟和监控功能。
A discrete and nonlinear mathematical model of three-phase four-leg inverter is built up with the switch state functions based on the analysis of its working modes.
在分析三相四桥臂逆变器工作模态的基础上，引入开关状态函数建立了四桥臂逆变器系统离散的、非线性的数学模型。
To study combinatorial properties of discrete sequences by means of zeros of generating functions is an important topic in combinatorics.
通过发生函数的零点来研究离散序列的组合性质是组合学中的一个重要课题。
We analyze global stability of a class of neural networks with discrete delays under three assumptions of activation functions.
在对神经网络的激励函数的三个假设下，研究了具有离散时滞的神经网络的稳定性。
Then discrete complex images method (DCIM) is applied to obtain spatial domain Green's functions, which enhance computing efficiency.
提出了二级离散复镜像法(DCIM)与表面波处理相结合的方法对空域格林函数进行计算。
The methods of the establishment of one-dimensional infinite internal dependent functions and the discrete (point) set dependent functions;
本文讨论一维无穷区间和离散集合关联函数的建立；
The methods of the establishment of one-dimensional infinite internal dependent functions and the discrete (point) set dependent functions;
本文讨论一维无穷区间和离散集合关联函数的建立；
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