三角函数

It is fairly featureful, having most of the common scientific and trigonmetric functions.

它是相当特性化的，支持大多数通常的科学和三角函数。

The total of these two sorts of functions is called S-functions The indicial function, sinusoidal function, cosinusoidal function, hyperbolic sinusoidal function, hyperbolic cosinusoidal function, trigonometric function of n-order and hyperbolic function of n-order etch are all belong to S-functions.

指数函数、正弦函数、余弦函数、双曲正弦、双曲余弦、n阶三角函数和n阶双曲函数等。都是S－函数的特殊形式。文中证明了关于S－函数及其各阶导数的性质的三个定理。

By utilizing the difference between curve s arc and chord,a series of more convenient and easily rememberable calculating formulas for railway curves are derived.

本文利用曲线的弧弦差推导出一系列比较简便、易记的铁路曲线计算公式，不需三角函数表及各种铁路曲线表，仅以简单的运算即可求得常用的各种曲线要素。

Trigonometrical function in the teaching of mathematics in secondary schools, have a decisive position.

中文摘要：三角函数的教学在中学数学教学中有着举足轻重的地位。

The real world of this relationship Putin still exist, thereby trigonometrical function is a function of the most widely used.

现实世界中的这种关系普偏存在，因而三角函数是函数中应用最为广泛的一种。

The function most value question is one of quite important contents,the similar trigonometrical function most value also is must often theimportant.

函数的最值问题是比较重要的内容之一，同样三角函数的最值也是非常重要的。

Trigonometrical function reflects Yuan Movement and the Movement of mutual conversion and the corresponding linear relationship is the only primary function of the cycle function.

三角函数反映了圆运动和直线运动的相互转化与对应关系，是初等函数中唯一的周期函数。

In this paper a new recursive DFT is proposed based on sum-and-difference formula of trigonometrical function and solution of linear equations. Its computation work is nearly the same as that of traditional recursive DFT, but it can solve many problems effectively which can't be solved easily by traditional recursive DFT, such as algorithms for overcoming attenuation direct-current component part existing in power system.

文中基于三角函数的和差公式以及线性方程组的求解，提出了一种新的递推离散傅里叶变换算法，它的计算量与传统递推算法接近，但可以解决传统递推算法不易解决的许多问题，如适用于人们提出的克服电力系统中衰减直流分量对DFT影响的一些方法中，因而具有广阔的应用前景。

When the modulus m approaches to 1 or 0, then the hyperbolic function solutions (including the solitary wave solutions) and trigonometrical function solutions are also given.

在极限情形，我们也得到所考虑方程的孤立波解和三角函数解。

Certain relevant concepts for Integal-Period Sampling , such as the orthogonality of the trigonometrical functions, Fourier coefficents, and aliasing effect etc. are extended to the case of NIPS.

进而将整周期谐波分析中的一系列概念，例如三角函数的正交性、Fourier系数，谐波分析中的关系，混迭等引伸到非整周期采样中来。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐