基本类

Convex hull of point set and that of a polygon are two classes of it.

凸包问题是计算几何的基本问题，分为平面点集凸包和多边形凸包2类。

Based on quickqull algorithm,an improved algorithm to determine the convex hull of 2-D point set was proposed in this paper.

凸包问题是计算几何的基本问题，分为平面点集凸包和多边形凸包2类。

The mainly contents include: the research design of statistical survey, survey methods, the statistical sorting and analysis of information (contingency table, correlation measurement, inferential statistics, regression analysis, variance analysis, cluster analysis, factor analysis, principal component analysis), the composing of investigation report and the appliance of SPSS.

课程对社会统计和社会调查研究方法进行全面的介绍，要求学生牢固掌握社会统计和社会调查的基本研究方法，能熟练运用社会统计和社会调查的方法和技术从事社会研究工作，对社会统计学的概念和术语有一般程度的掌握，能应用SPSS软件进行社会统计和调查工作。本课程主要内容包括：统计调查的研究设计、资料的调查方法、资料的整理与统计分析方法（列联表、相关关系测度、推断统计、回归分析、方差分析、聚类分析、因子分析、主成分分析等）、撰写调查报告、SPSS应用等。

By the perturbation theorem of cosine operator functions,one perturbation result for C-cosine operator functions is obtained.

而对于扰动问题的研究向来是十分重要的，因为这类研究是获得丰富理论的基本途径之一。

Some widely used artificial neural networks such as BP, RBF and ARTMAP were discussed on the common points they shared when solving nonlinear regression problems. A framework, proposed accordingly, suggested that such problems should be implemented in two steps: sample covering and modelbased map regression.

分析了BP、RBF和ARTMAP等人工神经网络在实现非线性映射方面的共同之处，基于RBF等网络对于人脑功能方面的模拟和仿生模式识别的思想，总结出一种处理这类问题的基本框架。

Based on the demands of two limit states,the design control equations of cross section for prestressed concrete beam are derived and the direct design method is presented.

根据两类极限状态的基本要求，建立了预应力混凝土梁截面设计的控制方程，提出了直接设计方法。

Meanwhile, this chapter studies all the cross relationship between these basic units and gives the system organization model through direct cross relation and indirect cross relation of these units.

第三章分析了分布工艺管理系统的组织功能特点，构划出用于构造分布工艺管理系统的六类基本元素，并分别对这些元素进行了定义与描述。

Their staple is small fish, but they will eat crustaceans and squid as well.

基本的食物是小鱼，也吃甲壳类和乌贼。

The Pinching problems are discussed on the sectional curvature of compact space-like pseudo-umbilical submanifolds M~n with parallel mean curvature vector in De Sitter space S~_p, and the theory of reduction of the codimension is obtained in De Sitter space through evaluating the Laplacian of square of the length.

讨论了De Sitter空间Snp+p中，具有平行平均曲率向量的紧致类空伪脐子流形Mn的截面曲率的拼挤问题，通过估计第二基本形式模长平方的Laplacian，得到了De Sitter空间中的余维数压缩定理。

It's typical of what I'd expect in the genre, although I found some of the voice acting flat at times and most of the girls had very similar sounding "cutesy" voices.

水准基本和我对这类作品的预料相符，有些时候配音显得有些平淡，很多女孩都有非常相似的，过于"扮萌"的声音。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。