递归

This is more accordant with the memory law of human brain.

它采用递归的方式，便于记忆模式的增减，更符合人脑的记忆规律。

In this paper, the theories of generation function and recursive relation in combinatorics is used to analyze the time complexity of some special recursive algorithm, with three conclusions reached simultaneously, which is of valuable reference to the analysis and research on algorithm.

提出了用组合数学中的母函数与递推关系理论来分析一些特殊的递归算法的时间复杂度，并同时得出三个推论，在算法的分析与研究方面具有一定的参考价值。

To prepare studying hierarchical intelligent control system of material flows in mineral processing plant further, picturing, transition rulers, analytic methods, relevance matrix and dynamic equation, defect in applying of Petri network, fall short of orient object models applying are discussed after technology of formalization model built, non-formalization built and compound model. And Petri network system with time attribute is expanded opening network system with interface of input and output. The network system expanded with all attributes of basic Petri network model has hierarchy and recursiveness, can be analyzed with mathematical tools of network system and can deal with concurrent and asynchronously also.

为了对选矿厂生产物流递阶智能控制系统的进一步研究奠定基础，本文在讨论了形式化建模技术、非形式化建模技术和复合模型的基础上，研究和分析了Petri网的图形表示、变迁规则、分析方法、关联矩阵与动态方程、Petri网模型应用中的缺陷、面向对象模型应用中的不足，并把采用赋时的Petri网系统扩展成为对外界有输入和输出接口的开放网系统，扩展后的Petri网具有递阶性和递归性，同时保持基本Petri网的所有性质，使模型仍可采用网系统数学工具进行分析，并可处理生产物流系统中的并发性和异步性。

First, the Lyapunov functional and variation of constants method are adopted to study the effect that Sigmoid function and the relation of resistance, capacitance and current in Hopfield neural networks have on the stability of networks. The stability criterion constructed by physics parameters is obtained. Thus how the constrained relation of physics parameters affects the stability of Hopfielf neural networks is clear. Based on the study above, the perturbation model of recurrent neural networks is constructed. And the theorems of the existence of solution of perturbation model are presented.

首先，采用Lyapunov泛函法和常数变易法研究Hopfield神经网络中给出的电阻、电容、电流之间的关系以及Sigmoid函数对网络稳定性的影响规律，得出仅由物理模型参数构成的稳定性判据，从而弄清物理模型参数约束关系对Hopfield神经网络稳定性所起的作用，在此基础上，构建了递归神经网络的扰动模型，并通过讨论扰动模型解的存在性问题，给出递归神经网络扰动模型解的存在性定理。

A recursive function must always define a stopping condition; otherwise, the function will recurse "forever," meaning that the function will continue to call itself until the program stack is exhausted.

递归函数必须定义一个终止条件；否则，函数就会&永远&递归下去，这意味着函数会一直调用自身直到程序栈耗尽。

It's important because it allows you to describe recursion in terms of rewrites, rather than computation steps.

它重要是因为它允许你在重写的节点描述递归，这将允许匿名递归函数。

The following script recodes the directory listing script with a manual recursive traversal function (a function that calls itself to repeat its actions).

以下脚本用一个手动递归遍历函数重写了目录列表脚本（递归函数就是它会调用自身做重复的动作）。

The constraint conditions of quasi optimal and strict optimal OOCs constructed by recursive method are theoretic analyzed. Based on these constraint conditions, as the initial conditions of OOCs obtained by direct construction, some quasi optimal and strict optimal OOCs with larger code length and sizes are obtained by recursive method.

2理论研究了基于递归法构造准最佳和严格最佳光正交码的约束条件，在此基础上，以直接构造法得到的光正交码为初始条件，利用递归法构造了一些具有相同相关特性的码长更长、容量更大的准最佳和严格最佳光正交码。

Of all the dependence analysis methods, an approach to analyze dependencies of recursive subprograms is one of the main difficulties.

为此 ，该文提出了一种新的递归子程序间的依赖性分析方法，它首先分析子程序内部的各种依赖关系；然后，结合子程序调用图分析子程序参数间的依赖关系；最后，通过模拟递归子程序的执行过程来分析它们之间的依赖关系。

In this paper, we discuss some recurrence relations and congruence properties of Bell polynomial, and give a class of recurrence relations satisfied by GSN pairs. Furthermore, we givethe definition of extended GSN pairs Gand G, so we unify the binomial coefficients, Gaussian coefficients, and Stirling numbers. We provide urn ,models for G(n,k|w,0) andG(n,k|0,w).

在这篇论文中，我们讨论了Bell多项式中的递归关系和同余问题，给出了广义Stirling数对的一类递归关系式，提出了扩展的GSN对G和G的概念，统一了二项式系数、高斯系数和Stirling数，并利用模型对G和G进行了组合解释。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。