domain of a function
英 [dəˈmeɪn ɒv ə ˈfʌŋkʃn]
美 [doʊˈmeɪn əv ə ˈfʌŋkʃn]
函数的(定义)域
英英释义
noun
- (mathematics) the set of values of the independent variable for which a function is defined
双语例句
- The frequency domain transfer function of the thin metallic shell is fit into a rational function using the vector fitting method, with the pulse response expressed as a sum of decay exponentials in the time domain from the inverse Laplace transformation.
该方法将金属薄壳频域屏蔽效能转移函数拟合为有理函数,根据拉氏逆变换性质,得到金属薄壳脉冲时域响应指数叠加的形式,从而采用递归卷积计算任意波形激励时金属薄壳的暂态屏蔽效能。 - A PWA controller is designed. A local linear controller is determined for the PWA approximate model in the region where the desired close-loop equilibrium point lies. Stability of the close-loop system in the whole domain of the nonlinearity is proved using a piecewise quadratic Lyapunov function principle.
设计了分段仿射控制器(PWA),在PWA近似模型期望闭环平衡点附近区域设计一个局部线性控制器,应用分段正定李雅普诺夫函数证明闭环系统在整个非线性域内稳定。 - Lacking space locality in time domain, Fourier analysis can only make certain of the integrity of a function's singularity. So it's hard to detect the spacial position and distribution of broken signal.
传统的Fourier分析由于在时域缺乏空间局部性,只能确定一个函数奇异性的整体性质,而难以确定奇异点在空间的位置及分布情况,难以检测到突变信号。 - EDOM& The input argument is outside of the domain of a mathematical function.
输入参数在数学函数的域之外。 - In the paper we extend the state space of Chebyshev polynomials to the real number domain, employ the semi-group property of Chebyshev polynomials to construct a one-way door-trap function, and avoid the attack.
该方案将Chebyshev多项式的状态空间扩展到实数域,从而利用Chebyshev多项式的半群特性构成具有单向带陷门的公钥加密算法,同时又可以避免上述已知密文的攻击。 - This paper improves greatly the correcting method of frequency domain for sensor's dynamic error, and enlarges its scope of application. A more reasonable correcting transfer function is adopted, the correcting precision is raised.
本文对传感器动态误差的频域修正方法作了较大改进,扩大了它的应用范围,采用更为合理的修正传递函数,提高了修正精度。 - The Gabor coefficients of power system transient waves span a very small area in the joint time frequency domain, whereas the Gabor coefficients of the noise are different. According to this characteristic, a time-frequency mask function can be designed to separate the transient waves from noise.
根据电网瞬态波形的Gabor系数在联合时频域分布比较集中,而噪声的Gabor系数均匀分布于整个联合时频域的不同特点,构造时频掩模函数,实现信号和噪声的分离。 - Aimed at the disadvantage of slow convergence rate in frequency domain LMS algorithm, according to the combine of frequency domain LMS fast algorithm with variable step-size technique, a fast variable step-size adaptive transmitter-receiver isolation algorithm in frequency domain is presented based on a new Sigmoid function.
针对频域LMS算法收敛速度较慢的缺点,将LMS频域快速算法和变步长技术相结合,提出了一种基于新的Sigmoid函数的变步长频域快速自适应收发隔离算法。 - To the problems of the model identification and predictive control of nonlinear systems in the domain of industry control, a nonlinear model predictive control algorithm is presented. The nonlinear function is constructed by least squares support vector machines regression.
针对工业控制领域中非线性系统的模型辨识与预测控制问题,采用最小二乘支持向量机回归方法构造非线性函数,运用状态子空间(N4SID)模型辨识方法辨识非线性状态空间模型。 - In Chinese high school text book, the domain of independent variable is mentioned. Function is looked as a depend relation between variables. They use geometric and corresponding language to describe function.
中国高中教材明确给出了自变量的取值范围,把函数看成变量之间的依赖关系,同时还用几何和对应的语言刻画函数。