正态分布函数

In this paper, the basic options as a starting point, the approach of assuming the price of the underlying assets comply with the conditions of normal distribution, we discuss the options buyers were portfolio probability and loss function benefits the mathematical expectation of a meaningful result is derived.

本文以基本期权为起点，在假定基本资产期日的价格遵从正态分布的条件下，讨论期权组合的购买者获益的概率及其损益函数的数学期望，并导出一个有意义的结果

Especially, we verify that copula method can obtain more practical VaR value than traditional model of multivariate normal distribution.

尤其是验证了借助连接函数理论，能够取得比传统的多元联合正态分布模型更符合实际的VaR数据。

Then, the statistic characters about carbonation depth such as average, deviation, model of normal distribution and its density function and etc. are also given.

同时，给出了碳化深度的统计特征即平均值、标准差、变异系数统计量和碳化深度正态分布的概率模型及其密度函数。

The reliability formulas that forces, intensities and subordinate function are normal distribution were gotten.

推导并整理了应力强度以及隶属度函数都为正态分布时的可靠度计算公式。

This paper studies on the ground settlement due to the deformation of the supporting structure. The normal distribution and parabola function are used to fit the curve of ground settlement and the estimating formula is deduced gradually.

本文主要对由于支护结构变位而引起的地表沉降进行了相关研究，利用正态分布及抛物线函数拟合了地表沉降曲线，并推导出沉降的估算公式。

Mathematical statistics ; least squares method ; probability ; normal distribution ; error function

数理统计学；最小二乘法；概率；正态分布；误差函数

The semi-low normal distribution membership function of fatigue limit is determined, and the anti-fatigue fuzzy reliability compute formula of rotor is deduced. The fuzzy reliability model of rotor anti-fatigue is set up. Taking an internal shaft of the rotor of aero electric generator for an example, its reliability design can be realized by adopting the anti-fatigue reliability design theory presented in the dissertation.

首次确定出了疲劳极限降半正态分布形式的隶属函数，推导出了转轴抗疲劳的模糊可靠度计算公式，建立了转轴抗疲劳的模糊可靠性模型；以航空发电机转子内轴为例，对其进行了抗疲劳的可靠性设计，并用本文建立的抗疲劳的模糊可靠度计算公式，对其进行了模糊可靠性校核。

By the minimum risk Bayes decision theory, this paper develops a new way of image segmentation: establish the mathematics model of image segmentation; estimate the probability density of grey scales and figure out its math-expectation and square difference that accord with normal distribution and the loss function; and judge the every pixel dot in the image according to the minimum risk Bayes decision theory and determine whether it is of target or non-target images, thereby realizing the extraction of the target image.

依据最小风险贝叶斯决策理论，提出了一种基于最小风险贝叶斯决策的图像分割方法。首先建立图像分割的最小风险贝叶斯决策模型，对灰度级类条件概率密度估计出其符合正态分布的数学期望和方差以及损失函数，再依据最小风险贝叶斯决策理论对图像中的每一像素点进行目标图像和非目标图像的类别判断，从而实现目标图像的提取。

The Technological Support of Diversification Management Paterns Agriculture insurance zoning is essential to providing crop insurance scheme in Chinese agricultural. Six risk indices, indicating regional characteristics, and fuzzy cluster analysis method, are applied to divide risk zones. After that, three kinds of ratemaking of agriculture insurance ways are discussed,including the weighted average method, the normal distribution method and the Pearson distribution method.

第六章多元化经营模式的技术支持农业保险区划是农业保险经营过程中必要的基础工作，根据区划的要求，本章选择了六项最能反映区域特征的风险指标，运用模糊聚类分析法，进行农业保险的分区；提出了农业保险费率厘定的三种方法，包括加权平均法、正态分布法和皮尔逊函数法。

Using normal distribution transform probability model to represent a laser range scan.Not need features corresponded,but transform the discrete scan date to the piecewise continuous and differentiable probability density function,and using Newton's algorithm to optimize scan matching,so can build the 2D global map.

利用正态分布转换概率模型来表示激光扫描，不需利用特征对应，而是通过将扫描得到的离散数据点转换成分段连续可微的概率密度函数，并利用牛顿优化算法来进行扫描匹配，从而建立2维全局地图。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。