Discussion on Harmonic Mean and the Arithmetic Mean

Evaluation and Analysis to the Representativeness of Arithmetic Mean Quota

算术平均指标代表性的评价分析

The investigation on average value error represented by arithmetic mean error of a series of measurement

用测量列的算术平均误差表示平均值的误差的实质探讨

Standard deviation and standard error of arithmetic mean

标准差与标准误

The method of progressive difference remedies a defect of the arithmetic mean

逐差法弥补了算术平均法处理数据的不足

Demonstration of the Dynamic Program for Arithmetic Mean and Geometric Mean

算术平均值与几何平均值不等式的动态规划证明

Arithmetic Mean Method and Weighting Mean Method of Digital Filter

数字滤波的算术平均法和加权平均法

International Super Flex Steel Conduit is used for electrical wiring where listed products are not required.

Flex的国际超级钢Squarelock导管用于电线的地方列出的产品是不是必需的.

Results Occipital condyle ( OC ) was an important sign and its long axis was 24.

结果枕骨 髁 为术中重要的解剖标志,枕骨髁长径,左侧24.

Butterfly processing uses integer arithmetic and each operation has certain error. Along with the increase-ment in arithmetic progression, errors will increase.

蝶形处理采用整数运算，每次运算存在一定误差，且随着运算级数的增多，误差会随之增大。

The article approaches the resolution of the sum of preceding N terms among a type of particular sequence, which consists of arithmetic product of arithmetic progression or arithmetic product reciprocal. It obtains two theorems and 6 deductions, along with the application of them.

对由等差数列的乘积以及乘积的倒数所构成的一类特殊的数列的前n项和的求解作了探讨，得出两个定理及6个推论以及应用。

And identification arithmetic of the Volterra progression model for aero engines was proposed. It was applied to a certain turbofan engine by imitating the dynamic respondence.

利用某型涡扇发动机的动态仿真，进行了发动机Volterra模型辨识及验证。

According to principles of economy, the seepage control effectiveness of canals which is studied under static and dynamic conditions and with arithmetic and geometric progression of seepage control performance to time as well as with no change seepage control performance to time is studied.

依据经济学原理，对混凝土渠道在经济静态和动态条件下，防渗性能随运行时间呈等差衰减、等比衰减及不随运行时间衰减时的防渗效益进行了研究。

On a Problem of Summing a Kind of Higher-Order Arithmetic-Geometric Progression

关于一种高阶算术几何级数的求和问题

Property of based on HPA nonlinear distortion arithmetic of Volterra progression

放大器非线性失真的Volterra级数算法研究

We asked them to learn the concept and the formula of general term of arithmetic progression under a teacher instruction or self-learning. After learning, they were asked to finish a test of far-transfer problems and near-transfer problems.

要求他们在教师指导或自学完成学习等差数列概念和通项公式。

In this paper, it is proved that there is an infinite arithmetic progression of positive even numbers each of which is prime to 3, and has no representation of the form p+ 3~ k.

证明了如下定理：存在一个正偶整数的无穷算术数列，其中每一项都与3互素且不能表为p+3k形式。

Some special patterns of annuity changes whose payments are of the arithmetic progression of higher order or of the reverse rainbow are studied, and their beginning values and ending values are given.

并研究了付款额呈高阶等差数列及倒虹式年金等某些特殊的年金变化形式，给出了其期初值和期末值。

Gauss might have given the answer to this as if it were an arithmetic progression, not having noticed that the 9th term was 112 instead of 111.

高斯也许会把这当成等差数列，并运用他的技巧，但他却没有注意到，第9个数是112而不是111。

It is questioned that thickness curves of concrete structures having uneven surface are directly derived without migrate, and depth is taken directly from ordinate in arithmetic progression.

常见的不作偏移，即对其背后岩石凹凸不平的混凝土结构物作厚度曲线，或在时间剖面上用等差级数的深度纵坐标，有基本概念的问题。

The formula of finite summation of K Steps arithmetic progression is seeked out by using the summation function of power series.

用幂级数和函数的思想来给出阶等差数列求有限和的公式。