余弦

In this design, a single-phase exciting signal gener AT ed by RC oscill AT ory circuit is applied to the rotor of synchro. The sine and cosine signals induced on st AT or are amplified by instrument AT ion amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA , and the converted 16-bit parallel angle d AT a and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过 FPGA 实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

Frequency for imaging of a line grid with cosinus form transmission. The spatial frequency is

MTF 表述了以余弦方式传输的线列栅格相对于空间频率的图像的质量和对比度。

Standard waveforms include: sine, square, triangle, dc, positive ramp, negative ramp, sine/x, pulse, pulse train, cosine, haversine and havercosine.

标准波形包括：正弦波，方波，三角特区，积极坡道，消极坡道，正弦/十，脉冲，脉冲，余弦， haversine和

Inverse hyperbolic cosine -- in radians !!!

反双曲线余弦--以弧度为单位！！！

Taking the hyperbolic sine and cosine functions as examples, the method of realizing the arithmetic in FPGA was presented and simulated on ISE(Integrated Software Environment) platform. The result showed this arithmetic was of good precision and instantaneity because of using pipeline.

本文简要介绍了该算法的基本原理，给出了具体的计算方法，并以双曲正余弦函数的求取为例，给出了CORDIC算法在FPGA中的实现方法，在集成综合环境平台上进行了仿真。

By the performance indexdr, We proposed in thispaper a new algorithm for the feedforward optimal gauge control of a steel stripmill. By this algorithm the control is the integral of gauge deviation weighted by hyperbolic cosine.

本文根据有限时间区间的厚差信息，利用有限时间二次型指标，提出一种新的带钢轧机厚度前馈最优控制，这一控制为厚差按双曲线余弦加权积分算法。

Based on CORDIC algorithm, research reveals how to calculate hyperbolic function by simple hardware.

研究基于CORDIC算法如何应用简单的硬件实现双曲正弦／余弦函数的计算。

The potential is evaluated as a hyperbolic function of the distance from anode.

这时，管壁电位随着离阳极的距离按双曲余弦函数衰减。

Firstly, sample data stream by two neighbor windows of given length. Then the sampling data is projected to normalized high dimension feature space and the two minus hypersphere models of two window sampling data sets are constructed respectively. Finally, detect change by computing cosine of inclination angle of two centrals of hypersphere.

该算法首先以给定长度的两相邻时间窗口对数据流取样，然后以支持向量数据描述方法将这两相邻时间窗口取样的数据流子集映射到规范化的高维特征空间，并分别建立描述这两相邻时间窗口取样数据流子集映像的最小超球模型，最后通过计算两超球之间的球心矢量的夹角的余弦，度量该两相邻时间窗口取样数据流子集的相似性检测模式变化。

The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

正弦是股与弦的比例，余弦是余下的那条直角边与弦的比例。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。