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
- Through extracting time domain features, energy, entropy, energy entropy, sequential characteristic and correlation dimension of different frequency bands by wavelet decomposition and empirical mode decomposition, it constituted eleven feature libraries, and provide a data base for applied research of kernel function.
提取时域统计特征、小波包分解和经验模态分解所得不同频段的能量、熵和能量熵特征、时序特征、关联维特征，构成11个旋转机械故障特征库，为核方法应用研究提供数据基础。 - 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。 - 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。 - 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。 - 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。 - 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。 - 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。 - The Method of Skill and Approach of Evaluating Domain of a Function
求函数值域的技巧方法探讨 - 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。