cosine
['kəusain]
n.[数]余弦
词形变化:
名词: cosigner | 动词过去式: cosigned | 动词过去分词: cosigned | 动词现在分词: cosigning | 动词第三人称单数: cosigns |
n.
【数】余弦
cosine
词形变化:
名词: cosigner | 动词过去式: cosigned | 动词过去分词: cosigned | 动词现在分词: cosigning | 动词第三人称单数: cosigns |
cosine['kəusain]n.1.■【三角学】余弦[略作 cos, 参较 sine, factorial]
cosinecosine[ˈkəusain]n.1.■【数】余弦
[ˈkəʊsʌɪn]
noun
- (Mathematics)the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse
(数)余弦
cosine
■The confidence level and uncertainty limit of cosine of uniform R.V. (8).
(7).均匀随机变数馀弦之均值不确定范围之信心准位。
■Classical image source code, images of the orthogonal transformation, Fourier, discrete cosine transform, such as complete source code can be used directly.
(译):古典形象的源代码,图像的正交变换,傅立叶,离散余弦变换,如完整的源代码可以直接使用。
■Study and Verification of Raised-root cosine filter, half-band filter, CIC filter on multi-design tools.
4:利用多种工具对raised-root cosine filter, half-band filter ,CIC filter进行设计、验证。
■Cos() returns the cosine of the arg parameter.
cos()返回参数arg的余弦值。
■The Discrete Cosine Transform(DCT) is one of the most widely used digital compression techniques for multimedia.
DCT(Discrete Cosine Transform离散余弦变换 )是目前应用最为广泛的多媒体数据压缩技术之一 .
■Discrete cosine transformation (DCT) is the most frequent operation in coding and decoding standards as H.261, H.263, MPEG_1 and MPEG_2 and so on.
H. 263、MPEG_1以及MPEG_2等视频编解码标准中 ,运行频率最高的运算是离散余弦变换(DCT)。
■MPEG2 also uses the discrete cosine transform,which takes images and finds their frequency and then compresses any repetitive frequencies.
MPEG2也使用离散的余弦转换,这种转换可获取图像,发现它们的频率,然后压缩任何的重复频率。
■MPEG2 also uses the discrete cosine transform, which takes images and finds their frequency and then compresses any repetitive frequencies.
MPEGZ也使用离散的余弦转换,这种转换可获取图像,发现它们的频率,然后压缩任何的重复频率。
■YU Pin-neng.FFT and FPT hybrid algorithm for 2- D discrete cosine transform[J].Oil Geophysical Prospecting, 1994,29(4) :468 - 473.
[7]余品能.二维离散余弦变换的FFT及FPT混合算法[J].石油地球物理勘探,1994,29(4):468-473.
■Is a mathematical function that returns the trigonometric cosine of the specified angle, in radians, in the specified expression.
一个数学函数,返回指定表达式中以弧度表示的指定角的三角余弦。
■Hey,that she is going to see my cosin.
一切只剩下我自己一个人。。。
■A Sort of Raise Cosine Filter Design
一种升余弦成形滤波器的设计
■A subroutine that returns the value of a single variable, and that usually has a single exit, for example, subroutines that compute mathematical functions, such as sine, cosine, logarithm, or that compute the maximum of a set of numbers.
一种子例行程序,它返回一个单独变量值,通常只有一个出口。例如计算数学函数的子例程,像正弦、余弦、对数等,又如求一组数的最大值的子例程。
■For the first one, the discrete ZAK transform and Raised cosine FIR filter are used to design time-frequency well-localized pulse shaping filters for OFDM/OQAM systems.
一种是利用ZAK变换及优化的升余弦滚降滤波器设计的OFDM/OQAM系统时频局域优化脉冲成形滤波器。
■The Cosine Law of General Closed Planar Broken Line
一般平面封闭折线的余弦定律
■What is the function of a cosine phase shifter?
与弦移相器有什么用处?
■The important influence factors to TCMF are due to the difference of the main contents of TCM, the Cosin method is better for similarity evaluation than Correlation method.
中药指纹图谱相似度的影响因素由样品所含的主要化学成分所引起,相关系数法比夹角余弦法对指纹图谱中小色谱峰变化的反应明显。
■In order to discuss the rationality of various warping displacement modes, second-degree parabola, cubic parabola, fourth-degree parabola and cosine function are selected respectively.
为了探讨各种剪滞翘曲位移模式的合理性,分别选取二次抛物线、三次抛物线、四次抛物线及余弦函数等翘曲位移模式进行计算;
■To improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology.
为了改进文本聚类的效果,提出了将领域知识本体和文本关键词词频相结合的基于余弦向量的文本相似性测度方法。
■The conventional radar signal processing is used to the chirp coherent CO2 ladar in this paper. The match filter with cosine weight is presented for the signal process.
为了解决线性调频CO2相干激光雷达的信号处理技术,将普通雷达的信号处理方法引入相干激光雷达的信号处理中,提出采用余弦加仅匹配滤波的处理方法。
■A novel video coding algorithm based on adaptive blocking regional wavelet transform and dis-crete cosine transform is described in this paper.
为了降低低码率视频编码算法的块效应与环效应,提出了一种基于自适应分区余弦变换/子波变换和重叠运动补偿的视频编码算法。
■In order to increase the shooting times and shooting effects and on the analysis of the human soccer tape extraordinary technology, this paper introduce cosine curve into the goal line of robot.
为提高足球机器人在比赛中的射门次数,以及射门效率,在分析了人类足球中盘带过人等技术的基础上,引入余弦曲线作为机器人射门路线。
■What about sine and cosine function?
了解正弦和馀弦函数?
■The relationship between gradient loaded effect and parameters have been deducted theoretically and verified experimentally.The application of cosine gradient loaded columns has been studied.
从理论上推导出程序效应与各变数之间的关系,对其色谱柱的特性进行了探讨。
■This example uses the Cos function to return the cosine of an angle.
以下示例使用Cos函数返回角度的余弦。
■The angle displacement of tested body is confirmed with the method of direction cosine, the mathematical model of angle displacement is established.
以方向余弦法来确定被测体的角位移,建立其角位移数学模型。
■The product of the effective values of the voltage and current with the cosine of the phase angle between current and voltage in an alternating-current circuit.
伏特量交流电路中电压与电流的有效值以及电流与电压之间相位角的余弦之乘积
■The cosine analysis revealed that the rhythms were delayed in acrophase or even disappeared after the irradiation.
余弦分析显示,以上指标的昼夜节律在照射后均发生改变,出现峰值时相延迟甚至节律消失。
■In practice, the Cosine measure is considered as the best model for document similarity search because of its good ability to measure similarity between two documents.
余弦模型由于能够很好地度量文档之间的相似性,被认为是解决相似搜索问题的比较好的模型。
■Cosine similarity is a good reflection of vector's similarity, and it also reflect the variations of vector's elements.
余弦相似度聚类不但体现了向量之间的相似关系,而且包含了向量内部元素的变化状况。
■The method of round or adjustment curve suruey and design is laying geometer out the angle bisector according to cosine the ormern.
全站仪安置在分角线上任意点测设圆曲线,以及缓和曲线原理是根据余弦定理,全站仪测设方法是应用极坐标法进行测设曲线。
■On A Group of Identical Equation of Cosine Function
关于余弦函数的一组恒等式
■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 pressure hydrophone array manifold can be divided into two subarray manifolds, which constitute a rotation pair, and the rotational invariant factors comprise the source's direction cosine.
其中声压水听器阵可以被划分为2个子阵,它们构成旋转对,旋转因子为包含某一轴方向余弦信息的相位延迟因子。
■English astronomer and mathematician who invented a surveying chain, quadrant, and scale and introduced the trigonometric terms cosine and cotangent.
冈特,埃德蒙1581-1626英国天文学家和数学家,发明了测链,象限仪和标尺,并引进了两个三角学术语,余弦和余切
■The acosh() function returns the inverse hyperbolic cosine of a number.
函数的作用是:返回一个数值对应的反双曲余弦。
■The cos() function returns the cosine of a number.
函数的作用是:返回一个数值的余弦值。
■Solving and Measuring Parameters by Cosine Law
利用余弦定理求解测设参数
■By the analysing method of direction cosine matrix ,we set up motion analysing model of spherical gear and fluted disc of this gear, thus provide the theoretical basis for control system design of actuating mechanism.
利用方向余弦矩阵分析法建立了球齿轮机构和球齿轮齿盘机构的运动分析模型,为执行机构的控制系统设计提供了理论依据。
■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。
■Power Factor Power factor is the cosine of the angle between the actie power( kW) and apparent power( kA) in a circuit.
功率因数功率因数是电路中有功功率(W)视在功率(A)间夹角的余弦值。
■Power Factor Power factor is the cosine of the angle between the active power( kW) and apparent power( kVA) in a circuit.
功率因数功率因数是电路中有功功率(W)视在功率(VA)间夹角的余弦值。
■The arccosine is the angle whose cosine is number.
反余弦值是指余弦值为number的角度。
■The inverse hyperbolic cosine is the value whose hyperbolic cosine is number, so ACOSH(COSH(number)) equals number.
反双曲余弦值是指双曲余弦值为number的值,因此ACOSH(COSH(number))等于number。
■IMDCT Inverse Modified Discrete Cosine Transform
反向改进离散余弦变换
■Meanwhile, many video compression standards such as MPEG-1 and MPEG-2 employ DCT(Discrete Cosine Transform) and IDCT(Inverse Discrete Cosine Transform) in coding and decoding.
同时,许多视频压缩标准如MPEG-1和MPEG-2等均采用离散余弦变换(DCT: Discrete Cosine Transform)及离散余弦反变换(IDCT: Inverse Discrete Cosine Transform)进行编解码。
■The voltage induced in series with the loop is proportional to the area and the cosine of its angle to the field.
回路感生电压的大小与回路面积以及回路与磁场方向夹角的余弦成正比。
■Since each pixel is positioned exactly where each cosine wave has a peak where the cosine value is "one," multiplying by one is unnecessary.
因为各个映像点确切地被安置各个余弦波浪有余弦价 值是" 一个的一个峰顶的地方, "乘以一个是多余的。
■As is well known, the EM field of TE11 mode at the wall of the circular waveguide changes as sine (or cosine) function azimuthally.
圆波导中TE11模式波的电场在波导壁上随角度按正弦(或余弦)变化.