查询词典 sum

This result generalized theconnected sum theorem about Donaldson invariants.

Kametani的简单不变量的环面连通和结果推广到度为1的SO（3）不变量情形。

Some formulas of the weighted Moore-Penrose generalized inverse of the sum of two matrices are given under two different kinds of conditions, related existing results are extend and modified with a sample and direct proof method.

在两种情形下，利用矩阵的加权Moore-Penrose逆导出了两矩阵和的加权Moore-Penrose逆的公式，其推导证明简洁而直接，文中还给出两矩阵可以同时加权奇异值分解的充要条件，指出了J.K。

In Part 5, the stability of linear large-scale singular dynamic system is investigated by using the method of vector generalized Lyapunov function and the sum type of scalar generalized Lyapunov function, respectively.

首先研究线性广义系统二次型李雅普诺夫函数的存在性；然后建立按线性近似系统决定非线性广义系统稳定性的准则；进而改进广义李雅普诺夫函数法以研究广义系统的稳定性；最后提出利用非线性函数的偏导数矩阵判别非线性微分-代数系统稳定性的若干简便判据。

The height that a good forum name should be pair of forum themes, definition is generalized and sum up, the person that can allow a visit achieves a kind of photographic result to forum name

对于一个主要的网站而言，现在最主要的推广方式有搜索引擎、友情链接、口碑宣传等，相对而言，网站的推广更简单一些，只需要将网站推出去，有人来点击即达到一半的效果；但论坛推广和网站推广又有一些不同之处，论坛的推广涉及到人，涉及到忠诚度等其他更多细节的东西，另外由于论坛的内容更新速度非常快，也是值得我们注重的一点。

The Genoese, believing that it was of emerald, accepted it in lieu of a large sum of money.

热内亚人相信这就是裴翠，要了它，代替了一大笔的钱。

In this paper, we show a formula for the arciform area enclosed with a parabola and a straight line by means of two kinds of clever separation and the knowledges of elements mathematics such as the sum formula of infinite decreasing geometric sequence .

文章运用两种巧妙的分割和利用无穷递缩等比数列求和公式等初等数学知识，求出了抛物线与相交直线围成的弓形面积计算公式。

We define the sum of the infinite geometric series...

我们把无穷几何级数的和定义为。。。

Evaluate the partition function as and check that the result agrees with the standard geometric series sum .

估算配分函数为并检查结果与标准的几何级数和一致。

Product sum of geometric series.

几何加权级数的乘积和。

And made a comparison between the Han nationality and the BouYei nationality students in learning geometric proof, we sum up the defferences between learning geometric proof abilities and the general proof process.

针对问卷和测查题的定量统计分析和个案定性分析，得出被试学生学习几何证明的一般过程和证明能力发展的差异情况，在此基础上进行了几何证明的微型教改实验，得到以下的结果： 1。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。