应用数学

Then the disquisition analyses three questions, prompts the devisal's method, betterment's way and the technique optimizing arithmetic. That is actual appliance to a catena of combination mathematics elements and it is also initial research in combination arithmetic designing.

通过对三个问题的分析，提示了组合算法的设计方法，改进方向和优化技术，是对一系列组合数学原理的实际应用，也是对组合算法设计的初步研究。

We will study the principle of integration by parts in the application of differential and integral calculus .

我们将探讨分部积分法在微积分问题化归中的应用规律，并对该数学方法进行示例。

The treatise is the last mathematical work of Xia, as well the first treatise applying the differential and integral calculus after appearance of the DWJ in China.

万象一原》(1862)是夏鸾翔在学习了《代微积拾级》(1859)之后完成的一部著作，这是夏鸾翔的最后一部数学著作，同时也是我国数学家自己写的第一部应用微积分知识的著作。

Mathematics has already reached plural function differential and geometry application.

数学已经到了多元函数的微分与几何应用。

In this paper, the temperature field in the well has been predicted by applying the finite differential method.

本文应用有限差分的控制容积法对井筒温度进行了模拟预测，建立了合理的物理和数学模型。

This kind of equation is from diffusion process with jumps and has important application in stochastic control and finance mathematics.

本文研究一类带有非局部积分项的完全非线性椭圆型方程粘性解的比较原理，这类方程源自带跳跃的扩散过程，在随机控制，金融数学中有广泛而重要的应用。

In the recent ten years, not only Diophantine equation itself develops very actively, but also promotes the development of other fields.

最近十余年，不定方程不仅自身的发展异常活跃，而且全面应用于离散数学的其他各个领域。

Earthworks zero line is determined by constructing the spatial gridding curved surface model of the original terrain and the field leveling design terrain by digital elevation mode. The DEM data of original terrain are obtained by actual measurement. The mathematical correlation is deducted to demonstrate the relationship between the coordinates of any point on spatial line and the direction cosine by the spatial linear equation. DEM data obtaining program is compiled by Fortran9.0 and it is applied automatically to obtain the DEM data of field leveling design terrain.

目的 利用数字高程模型(digital elevation model， DEM)构造原始地形和场平设计地形的空间网格曲面模型，确定土方工程中的零线方法通过实测提取原始地形DEM数据；依据空间直线方程，推导空间线段土任意点的坐标与方向余弦的数学关系式，采用Fortran90程序设计语言编写DEM数据提取程序，自动提取场平设计地形DEM数据；应用Surfers8.0和MapInfo软件构造规则的网格空间曲面模型并导出网格节，点数据；擦除场平设计范围外数据。

In the present article, the nature analysed for Dirichlet function and Riemann function is discussed, the role of these functions in the mathematical analysis is demonstrated, and some applications of these functions are given.

本文讨论了狄利克雷函数、黎曼函数的分析性质。并展示了这些函数在数学分析中所起的作用。并且给出了这些函数的一些应用。

After a brief summary on data mining and rough set theory, the research works in the thesis can be descript as follows: 1. To the problem that finding rules in enormous data is very timeconsumable and the expansibility of existed algorithms is not very good, the thesis proposes a new method to discompose large data table based on the concepts of positive region and the importance of attribute in rough set theory.

Rough集理论是一种新型的处理不确定性知识的数学工具，围绕着数据挖掘领域存在的问题，本文利用Rough集理论与Rough分析工具，提出若干解决方案，同时在具体处理问题过程中引入了信息理论、因子分析等方法，与Rough分析结合使用，讨论了Rough集技术在知识发现、关联规则挖掘、模式分类以及数据清洗等问题中的应用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。