正切

基本解释 (translations)

secant  ·  tangent  ·  tangents

词组短语

straight-across-cut

与正切相关的网络例句 [注：此内容来源于网络，仅供参考]

ABEAM-Beside: An aircraft is abeam a station when that station is 90° to the right or left of the track of the aircraft.

正切旁侧的：当该电台在航空器航迹右侧或左侧90°时，为航空器正切电台。

ABEAM,Beside: An aircraft is abeam a station when that station is 90° to the right or left of the track of the aircraft.

正切，当电台在飞机左侧或右侧方与航迹成90 度时，飞机正切电台

A new generalized fuzzy hyperbolic model is proposed, which can be seen as the generalization of common fuzzy hyperbolic model. The generalized fuzzy hyperbolic model is proven to be a universal approximator. Two identification algorithms are put forward to identify the model from input/out data.

通过对模糊双曲正切模型的改进，提出一种广义模糊双曲正切模型，证明了此模型可以以任意精度逼近紧集上的连续非线性函数，即此模型具有全局逼近性，并给出其辨识算法。

Key words: artificial intelligence; particle swarm optimization; inertia weight; tangent function; arc tangent function

关键 词：人工智能；粒子群算法；惯性权重；正切函数；反正切函数

PSO algorithm and the function of the inertia weight are described. Using the characteristic of the tangent function and the arc tangent function for reference, two new strategies are produced.

首先分析了PSO算法惯性权重的作用，并借鉴正切和反正切函数的变化规律，提出了两种新的惯性权重改进策略。

For fuzzy hyperbolic model, three stable controllers are proposed based on robust stability theory, optimal control theory, H-infinite theory and nonlinear system theory. Finally a fuzzy Lyapunov analysis method is put forward to analyze the stability of fuzzy hyperbolic system.

针对模糊双曲正切模型，根据鲁棒稳定性理论、最优控制理论、H无穷控制理论和非线性系统理论设计了三种稳定的控制器，并提出一种模糊Lyapunov分析方法使用语言信息分析模糊双曲正切系统的稳定性。

This invented simplified algorithm is to use sectional linear judgement method or looking-up table method to replace the hyperbolic tangent judgement. The substance is to use sectional linear judgement function L or judgement function T of looking-up table to approach the hyperbolic tangent function tanb.

为了解决这个问题，本发明的双层加权并行干扰对消算法的简化算法用分段线性判决方法或者查表法来代替双曲正切判决，其实质就是用分段线性判决函数L或者查表法的判决函数T逼近双曲正切函数tanh。

The invention refers to a method to correct universal frequency of electric communication technique, its character: make signal index quantization on the complex number of cross product, to directly reflect the quantized numerical value of tangent value and the located quadrant of imaginary and real parts, use inverse tangent ROM table to discriminate the processed result, then make loop filter and phase accumulation on the discriminated result to obtain error-correcting angle, and use digital controlled oscillator to make table look-up and quadrant adjustment to obtain correcting factor; use the relationship of trigonometric function in each quadrant to compress inverse tangent look-up table ROM and digital controlled oscillator look-up table ROM.

一种涉及电通信技术的通用频率纠正的方法，其特征在于：它采用如下步骤：经过叉积的复数进行信号指数量化处理，通过该复数虚、实部信号的指数量化结果的差值及其极性直接反映虚、实部的正切值的量化数值以及所处象限，将处理后的结果通过反正切ROM表进行鉴频，鉴频后的结果经环路滤波和相位累加，得纠偏角度，通过数控振荡器针对纠偏角度进行查表和象限调整，得到纠正因子；通过个象限之间的三角函数关系来压缩反正切查表ROM和数控振荡器查表ROM的大小，本发明资源耗费小，效率高，可极大地节省内存资源。

A measurement method of the reflection coefficient of the radome electrical thickness has been introduced.

利用短路波导法测量了材料介电常数和损耗角正切，测量结果显示：介电常数测量的精度和稳定度较高，损耗正切的测量误差较大。

To eliminate the limit, a hybrid objective function weighted by antitangent function is constructed, which behaves like an objective function of norm for small data points and like an objective function of norm for large data points, restraining the influence of false data points on inversion procedure.

为了解决这一问题，利用反正切函数作为加权因子构造了反正切混合目标函数，并利用模型试验进行了验证。简要阐述了最优化目标函数的构造方法；给出了利用反正切函数构造混合目标函数的基本原理，并对目标函数的微分特征和概率特征进行了分析；利用模型论述了反正切混合目标函数中控制参数μ和σ的意义，μ控制反正切函数变化的速度，σ控制数据误差项被处理或加权的方式。

与正切相关的网络解释 [注：此内容来源于网络，仅供参考]

hyperbolic tangent function：双曲正切

hyperbolic tangent 双曲正切 | hyperbolic tangent function 双曲正切 | hyperbolic type 双曲型

hyperbolic tangent：双曲正切

hyperbolic system 双曲型组 | hyperbolic tangent 双曲正切 | hyperbolic tangent function 双曲正切

tan：正切

可对一个 32位IEEE浮点数执行下列操作: 求绝对值(ABS) 求平方(SQR)和平方根(SQRT) 求自然对数(LN) 求指数值(EXP)以e (= 2,71828)为底 求下列32位IEEE浮点数表示的角度的三角函数 - 正弦(SIN)和反正弦(ASIN) 余弦(COS)和反余弦(ACOS) 正切(TAN)和反正切(ATAN

tangency：接触、正切、切线

tandem tube drawing串联拉管 | tangency接触、正切、切线 | tangent切线、正切

tangent curve：正切曲线

tangent cone 切线锥面 | tangent curve 正切曲线 | tangent function 正切

tangent function：正切

tangent curve 正切曲线 | tangent function 正切 | tangent line 切线

tangent：正切

这个数值往往是以[[三角函数]]的'''正切'''(tangent)的[[百分比]]数值来陈述,即'''爬升高度'''比'''在一个水平面上的移动距离'''. 除了正切百分比,还会直接标示斜坡垂直提升的'''角度''',甚至会使用'''正弦&

tan,tanh：正切,双曲正切

sqrt 平方根 | tan,tanh 正切,双曲正切 | blkding 从输入参量建立块对角矩阵

tanh math.hcomplex：数学子程序 计算参数x的双曲正切值

tan math.hcomplex 数学子程序 计算正切值 | tanh math.hcomplex 数学子程序 计算参数x的双曲正切值 | tanhl math.hcomplex 数学子程序 计算正切值

tanh math.h complex：数学子程序 计算参数x的双曲正切值

tan math.h complex 数学子程序 计算正切值 | tanh math.h complex 数学子程序 计算参数x的双曲正切值 | tanhl math.h complex 数学子程序 计算正切值