余弦

Calculates the cosine of an angle.

计算角度的余弦值。

Cos public static double cos Returns the trigonometric cosine of an angle. Parameters: a - an angle, in radians. Returns: the cosine of the argument

Cos函数返回三角的余弦函数，参数a是一个以double类型的弧度表示的角值，返回类型为double。

Via the stochastic averaging method, the four-dimensional system is reduced to a two-dimensional one. Through the logarithmic polar transformation , and then Girsanov theorem and Feynmann-Kac formula, the backword differential operator is then obtained. By expanding the eigenfunctions as a Fourier cosine series, the approximate analytic expansion of the moment Lyapunov exponent is then obtained.

首先在经典二元机翼颤振方程加入随机激励，通过随机平均法，Girsanov定理和Feynmann-Kac公式得到关于矩Lyapunov指数的特征值问题，其次采用Fourier余弦级数对特征函数进行正交展开得到系统矩Lyapunov指数的近似解析式。

The maths that theorem of cosine of article solicit comments uses education to talk how to foster 5 years to make high post student uses consciousness and capacity.

本文就正余弦定理应用教学来谈谈如何培养五年制高职学生的数学应用意识和能力。

And you know this is just what sine, cosine, and tangent are.

你知道这仅仅是正弦，余弦和正切的。

Prepared by the images of discrete cosine transform and w...

Visual C++编写的图像的离散余弦变换和小波变换的源代码，可直接运行。

In this paper a method based on discrete wavelet transform and discrete cosine transform is presented to compress color image.

中文摘要：本文给出了一种基于离散小波变换和离散余弦变换的彩色图像压缩方法。

Starting from discrete cosine transformation, this paper presents a new way to embed digital watermark in images.

从离散余弦变换出发，提出了一种图象中植入数字水印的方法此。

Discrete cosine transform is an effective method to signal enhancement.

离散余弦变换是声信号增强的有效方法。

This paper proposes an improved information channel estimation algorithm based on the discrete cosine transformation.

提出了一种改进的基于离散余弦变换的OFDM信道估计算法。

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。