sine function

In the method the unknown fault signal space was mapped to known sine function space using topology contravariant map, the purpose of studying the unknown space was proposed through studying known space.

该方法把未知的机械故障信号空间通过拓扑反变映射映射到已知的非平稳正弦函数空间，通过研究已知空间的性质达到研究未知空间性质的目的。

The output characteristic of the non linear throttle hydraulic system with the constant pressure source under the effect of sine function was discussed with describing function of frequency characteristic in the article.

采用频率特性的描述函数法，讨论带恒压源的非线性节流式液压传动系统在正弦函数作用下的输出特性。

Aim To study some calculation formula of sine function and cosine function.

目的研究正弦函数和余弦函数的一些计算公式.

An attempt to offer a new treatment of end point error in precipitation titration by using hyperbolic sine function is given in this paper.

基于沉淀滴定基本原理，利用双曲正弦函数性质提出了一种处理沉淀滴定终点误差的新方法。

For anyone that needs a little refresher course, the sine function gives the ratio of the opposite side of a given angle in a right triangle to the hypotenuse.

一些人需要复习一点数学课程，正弦的作用是给出在一个直角三角形中的一个已知角所对应的一条边与直角三角形斜边之间的比率。

A new conclusion is put forward, in which the smooth degree of the data row can be enhanced by means of the arc-hyperbolic sine function transformation.

提出了“利用反双曲正弦函数变换提高数据列光滑程度”的新结论，获得了递增时间序列改善的自回归预测新方法。

The classical signal analysis method is Fourier transformation, whose essence is to decompose the signal wave into many sine waves, and which also can be seen as representation of time function in frequency domain.

傅里叶（Fourier）变换是经典的信号分析方法，其实质是：把波形分解成许多不同频率的正弦波之和，可看作是时间函数在频率域上的表示。

Symbol of operator is the function of operator acting on sine function.

算子作用于正弦波函数所得函数称为算子的象征。

this paper first describes the origins of the sine function. then, due to the need for astronomical research, the greek scholar established trigonometry, trigonometry which marks generated, the sine function has been further developed.

本文首先说明了正弦函数的起源，继而，由于天文学研究的需要，希腊学者建立了三角学，这标志着三角学的产生，正弦函数得到进一步发展。

Preparation of Semi-solid Aluminum Alloy by Sine Function Method

Sin函数冷却法制备半固态铝合金

The results found that the entanglement is a sine function over time.

结果发现，其纠缠度是一个随时间呈正弦变化的周期函数。

Research on wavelet chaotic neural network with disturbance of sine function

带正弦函数扰动的小波混沌神经网络研究

The color texture modeling which uses sine function was built.

利用正弦函数的变化规律对植物表面颜色纹理进行模拟。

Coefficient formulae derived belong to forms of the sine function.

所推导的系数公式都属正弦函数形式。

Draw Sine Function Image with Computer

计算机绘制正弦函数图象

Then, the paper analyzes the spread of the sine function and development in China.

而后，本文整理了正弦函数在中国的传播与发展。

Function signal generator of the system can produce sine, square, triangular wave.

函数信号发生器本系统能够产生正弦波 、 方波 、 三角波.

This paper proves that the smooth degree of a data row can be increased by transforming the counter-hyperbolic sine function.

证明了利用反双曲正弦函数变换能提高数据列的光滑程度，给出了改善的自回归预测方法，并且举例加以论证。