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- Based on the steepest descent method,we present an efficient numerical method for computing the sine and cosine transform in resistivity measure,and present theoretical analysis of the error bound. 在最速下降法的基础上,给出了地球物理勘探中计算一种正余弦变换的一个有效数值算法,同时对新算法产生的误差进行了理论分析,并用数值实验对理论分析进行了检验。
- What about sine and cosine function? 了解正弦和馀弦函数?
- finite sine and cosine transforms 有限正弦和有限余弦变化变换
- Sine and cosine transform 正余弦变换
- We derive the addition formulas for sine and cosine from the arithmetic of complex numbers. 用复数算术推导了正弦,余弦的加法公式。
- With the use of the properties of the second Chebyshev polynomial,a group of interesting identity of sine and cosine function is obtained. 利用第二类契贝谢夫多项式的性质得到了关于正余弦函数的一组有趣的恒等式。
- This paper develops iterative formula of sine and cosine function in document[40], and presents new pixel-level algorithms forgenerating Archimedes and involute curves which are widely used in engineering. 本文推广了文献[40]中正弦、余弦函数的递推公式,对工程绘图中常用的阿基米德曲线和渐开线设计了新的逐点生成算法。
- Symmetry of Sine and Cosine Function Graphs 正弦函数图像及余弦函数图像的对称性
- On a group of identity of sine and cosine function 关于正、余弦函数的一组恒等式
- On some identities of sine and cosine functions 关于正弦函数和余弦函数的一些恒等式
- the Maclaurin Series for sine and cosine 正余弦函数的麦克劳林级数
- Odd Even Order Capital Permanent of Sine and Cosine Function 正、余弦函数奇偶次方的积和式
- An Investigation into Sine and Cosine Weighted-repeated Formula 正余弦加权叠加式的研究
- Hyperbolic sine and cosine operators together with odd and even coherent states 双曲正弦、余弦算符与奇偶相干态
- The improved AFT algorithms for even and odd functions can also be used for computing discrete cosine transform (DCT) and discrete sine transform (DST),respectively. 本文改进的偶函数和奇函数的AFT算法还分别可以用来计算离散余弦变换 (DCT)和离散正弦变换 (DST) .
- The expression for g can be rewritten in terms of trigonometric sines and cosines. 关于g的表达式可以重写成三角函数的正弦和余弦形式。
- We use transform functions to reform symbols distribution and to reduce their correlation.Discrete Sine Transform (DST) and Discrete Cosine Transform (DCT) are used in this approach. 我们使用转换函数重新排列讯符的分布并降低讯符间的相关性,使用的函数为离散正弦转换及离散馀弦转换。
- Design of the Sine and Cosine Precision Reference of High Precision Excitation Power Supply with Closed Loop Control 高精度闭环激磁电源正余弦精密基准的设计
- We derive the addition formulas for sine and cosine from the arithmetic of complex numbers 用复数算术推导了正弦,余弦的加法公式。
- Theblock-based discrete cosine transform (DCT) is a fundamental component of manyinternational image and video compression standards. 基于离散余弦变换(DCT)的压缩技术是目前大多数国际图像视频压缩编码标准中采用的一种压缩技术。