查询词典 approximate formula

In prime number distributed research process,and through established one kind of new sieve method and the stair theory,this article obtained about three group of prime number distribution recurrence formula: The 1st is not bigger than x the prime number integer recurrence formula;The 2nd is not bigger than x the twin prime integer recurrence formula;The(3rd Recurrence) formula.

在研究素数分布过程中，通过创立一种新的筛法与台阶理论，得到关于素数分布的三组递推公式：不大于x的素数个数与孪生素数对数量的递推公式；不大于x的孪生素数个数的递推公式；任意偶数x≥6表为两个奇素数之和与孪生素数对数量对数的递推公式。

All parties agreed to use the tiered formula for tariff reduction in 2004 reached "July framework", but the details of the formula did not make specific provisions. So each group put forward their own tiered formula and the negotiating parties are currently evaluating the impact of different formula.

在2004年达成的"七月框架协议"中各方一致同意使用分层公式作为关税削减的主要方式，但是对该公式的细节并没有做出具体的规定，所以目前各集团分别提出了自己的分层减让方案，谈判各方正以此为基础进行测算，以评估对本国利益的影响。

It was supposed that the dynamic moving process of the stock price and the return was driven by Geometry Brownian Motion and the lognormal distribution respectively. Takinginto account the riskneutral environment, we got a closedform analytical formula for deferred arithmetic asian options by the method of Taylor expansion of the stochastic integral formula within the terminal payoff. Furthermore, with the series definition of the definite integral, we transferred the continuous problem into a discrete one which is simpleenough to figure out. Meanwhile we tested the accuracy of the formula with the Monte Carlo simulation as a benchmark and the result shows that the formula can be utilized to price the related financial derivatives.

在标的价格服从几何布朗运动、收益服从对数正态分布的前提下，通过风险中性定价原理，对到期损益中的随机积分进行任意次Taylor近似，并由级数定义将此连续问题离散化，给出了延期算术平均亚式期权封闭形式的解析定价公式，并与Monte Carlo模拟得到的价格作为标尺对得到的公式进行精确性检验，结果表明，所得公式可以应用到金融实务中对此类衍生品定价中。

Optical Formula Recognition is not only the sign of formula recognition, but also include the extraction of the formula, the record of two dimension structure of the formula and so on.

数学公式的识别不仅只是公式中符号的识别，其还包括了公式抽取，公式二维结构的记录等方面的研究。

Tab stop set up after the front of the cursor on the formula, click the Tab key, so that the formula, insert the words in a tab, when the formula in place as the central tabulation center Align Center and then the cursor moved between the formula and the left bracket, and then Tab key insert a tab, go to line number on the end.

设置好制表位后，把光标放在公式的前面，按一下 Tab 键，这样就在公式的前面插入了一个制表符，此时公式以居中制表位为中心居中对齐，再把光标移到公式和左括号之间，再按 Tab 键插入一个制表符，编号就跑到行末了。

For the security market with restricted borrowing and short sale unallowed, Options pricing formula are advanced, and the relation between them and Black-Scholes Options pricing formula is discussed. The essence of Black-Scholes Options pricing formula is set forth. To the security market with restricted borrowing and short sale unallowed, stock returns risk pricing formula is advanced and the demonstration analysis of China security market is provided. From the demonstration analysis, arbitrage exists in China security market, which can be applied to explain the riddle of a great deal of China bank money and hot money swarming into China security market.

本文在B-S期权定价的基础上，直接利用股票本身的参数推导出股票收益率风险的定价公式；对不允许融资和卖空的证券市场，给出了看涨期权和看跌期权的定价公式，并讨论了他们和相应B-S期权定价公式之间的关系；对B-S期权定价公式的本质做出了阐述；对不允许融资和卖空的证券市场，给出了股票收益率风险的定义；利用股票收益率风险的新定义，对中国证券市场进行实证分析，得出中国证券市场存在套利，解释了2006年和2007年中国大量银行资金和国外热钱流向中国股市之谜。

Base on the fact that a hard-edge aperture function can be expanded into a finite sum of complex Gaussian functions, the approximate analytical expressions for the propagation characters of Hermite-Guassian beams passing through double rectangular apertured are derived. The approximate analysis uses Collins formula. At last, Matlab illustrates some numerical examples.

基于硬边孔函数能拓展成一组有限复高斯函数的和，研究厄米－高斯光束通过双矩孔的传输特性，用Collins公式分析，用Matlab进行一些数值模拟。

Through numerical calculation and comparison with the complete formula,the accuracy of the approximate formula for calculation of reflection coefficient often used in AVA method for gas hydrate is discussed.

通过与完整公式的对比，对AVA常用的反射系数近似计算式的精度进行了讨论，同时分析了地震波速度、泊松比、密度等参数对于BSR反射系数的不同贡献。

They concluded that the derivative-free formula is not exact under the assumed conditions, but it is a very good approximate reconstruction formula.

黄朝志等发现在1993年发表的非圆轨迹不含导数的扇束重建公式推导中的一个错误他们的结论是：在假设的条件下，不含导数的重建公式不是精确的，但是一个很好的近似重建公式。

The result shows that frequency calculated using the finite element modeling is closed with those calculated by formula, which has proved approximate formula has very high accuracy.

研究结果表明：采用有限元建模计算基频，其结果与公式计算结果接近，证明近似公式计算精度高。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。