quadratic function
英 [kwɒˈdrætɪk ˈfʌŋkʃn]
美 [kwɑːˈdrætɪk ˈfʌŋkʃn]
网络 二次函數; 二次函数; 二次函數; 二次函数二次函数; 二次函
双语例句
- Every function whose derivative is linear is a quadratic function.
任意一个导数为线性函数的函数都是二次函数。 - Study on Increasing the Successful and Typical Probability of Quadratic Function Regression in Fertilizer Experiments
提高二次回归肥料试验成功率及函数典型率的研究 - HAUSDORFF DIMENSION OF JULIA SETS OF RANDOM DYNAMICAL SYSTEM Every function whose derivative is linear is a quadratic function.
函数族Julia集的Hausdorff维数任意一个导数为线性函数的函数都是二次函数。 - The Research of Quadratic Function Curriculum Resource Exploitation Based on PowerDirector in Ninth Grade
PowerDirector下九年级一元二次函数课程资源的开发研究 - The relationship of LAI and AB could be stated with a quadratic function.
同时，叶面积指数与地上生物量之间有二次函数的拟合关系。 - The optimal value problems seen in real life such as price, benefits and area measurement can be solved with quadratic function easily.
实际问题中的最值问题，常见的有价格和利润的最值问题和面积最值问题，用二次函数模型就能迎刃而解。 - In our proposed method, both the objective function and the perfect reconstruction condition are expressed as a quadratic function of the prototype filter coefficient vector.
该方法中，目标函数和完全重构条件均被表示成为原型滤波器系数矢量的二次函数形式。 - The response curves of landscape pattern indices to grain size were fitted by quadratic function, cubic function, power function, and linear function, respectively.
部分景观指数随粒度变化的响应曲线可分别用二次函数、三次函数、幂函数、线性函数进行拟合； - The results of this experiment showed that pressure drop and flow velocity are related in quadratic function;
得出结论：分布板压降和流速成二次函数关系； - When taking into account of the voltage dependency of load characteristics, load flow equations are not quadratic function of state variables, optimal multiplier newton method of load flow solution for ill conditioned power system can not implemented.
当考虑负荷电压静特性时，潮流方程不再为状态变量的二次函数，传统的求解病态潮流问题的最佳乘子牛顿法无法实施。 - The path is defined as linear combination of a sequence of conjugate directions which are obtained by applying conjugate direction method to the approximate quadratic function in the null space.
将共轭方向法应用于零空间中的近似二次模型，得到一组共轭方向序列，共轭方向序列生成了共轭梯度路径。 - In this paper, a new quasi-Newton method ( algorithm of pseudo-Newton-R class) is presented for unconstrained optimization, this method possesses the property of finite convergence for quadratic function and scale invariance.
对无约束优化问题提出了一个新的拟Newton法（伪Newton－R族算法），这种方法具有二次终止性及调比不变性。 - In fact, the discrete logarithms problem for elliptic curves over finite fields is equivalent to the discrete logarithms problem for real quadratic function fields.
事实上，椭圆曲线的离散对数问题与函数域上理想类群的离散对数问题存在某种等价关系。 - The objective function of the model is a quadratic function with separable in the variables, and the constraints are linear.
该模型的目标函数是变量可分离二次函数，而约束条件是线性的。 - The theory of extreme value of quadratic function is summarized from both conditional and unconditional extreme values and the linear equations set of the principal axis of quadratic surface is determined.
从J函数的无条件极值和条件极值两个方面，综述了二次函数的极值理论，以及确定二次有心曲面主轴的线性方程组。 - A technique based on autoregressive ( AR) modeling was proposed, AR coefficients and modeling errors were used to accomplish the compression of ECGs and then classify ECGs by using discriminant of nonlinear quadratic function.
本研究提出了一种基于AR模型的ECG直接分类方法，利用AR模型系数及其建模误差作为特征对ECG信号进行压缩，并采用非线性二次判别函数形式进行特征分类。 - The developmental trend of memory span fitted a quadratic function of logarithm of age.
不同材料的记忆广度具有相同的发展趋势，近似于年龄对数的二次函数。 - In this paper, the excitation in each time step is approximated by quadratic function, recurrent formulae to compute Duhamel's integrals are derived.
本文以二次式来逼近每个时间步中的激励变化，给出了计算Duhamel积分的递推公式。 - Second, a new method of controlling chaos by employing a dynamical nonlinear controller is developed to DC-DC buck converters towards stead periodic orbit. The controller is piecewise-quadratic function in the form of x x.
基于一种分段二次函数xx，提出了一种新的混沌控制方法，使用它作为非线性反馈控制器成功地控制了DC-DCbuck变换器到稳定的周期轨道。 - The generation cost can be represented by quadratic function of generated energy.
发电商的发电成本可以通过发电量的二次函数来表示。 - The problem of solving systems of linear equations is converted into calculating the minimum of a quadratic function.
把求解线性方程组的问题转化为一个二次函数的优化问题后，给出了一个降低该优化问题求解空间维数的方法。 - By using the knowledge about shear diagram, moment diagram and extreme value of quadratic function, this paper discusses on the calculating method of maximum shear and maximum moment of simple-supported beam under moving loads.
应用剪力图、弯矩图和代数二次函数极值的知识，对简支梁受移动载荷作用时最大剪力和最大弯矩的计算方法进行了论证。 - A simple formula of forming metric matrices is put forward. The simple variable matric algorithm produced from the formula is equivalent to the secant method and when the aim function is positive definite quadratic function, it is equivalent to BFGS.
提出了构造尺度矩阵的一个简式公式，其对应的简式变尺度算法与正割法等价，当目标函数为正定二次函数时简式变尺度算法与BFGS方法等价。 - The Approximate Method of Quadratic Function With Mixed Constraint
具有混合约束二次函数的逼近方法 - Through the "static roller 1g acceleration of gravity experiment." quadratic function least squares polynomial fitting and application method, the temperature accelerometers static model;
通过加速度计的重力场1g静态翻滚实验，应用二次函数最小二乘法和多项式拟合的方法，建立了加速度计静态温度模型； - The security of the algorithm is mainly based on the difficulty of RSA crack, and the complexity of the algorithm is based on matrix transformations and quadratic function operations.
此算法的安全性主要是基于RSA破解的难度，而算法复杂度基于矩阵变换与基础二次函数运算。 - On this basis, using the calculating method of ω-approximation calculates indefinite quadratic function whose constraint condition is a convex polygon.
在此基础上，运用ε一近似解的计算方法，计算约束条件是凸多边形的不定二次函数。 - To predict the power amplifier and the ultrasound transducer transfer function in real-time tracking process, this paper focuses on the feedback algorithm based on a linear function fitting and improved quadratic function fitting.
在实时跟踪过程中需预测功率放大器及超声换能器的传递函数，本文重点分析了基于线性（一元一次函数）拟合和改进的基于一元二次函数拟合预测的反馈算法。 - Conjugate direction method comes from the study of the minimization problem of the quadratic function, but it can be extended to deal with the minimization problem of non-quadratic function.
共轭方向法是从研究二次函数的极小化产生的，但是它可以推广到处理非二次函数的极小化问题。 - This article would study on two types of discrete time predator-prey systems aiming at maximizing their profits and capture by using differential methods, quadratic function theory and Gordon theory respectively.
针对两类离散的捕食-食饵系统，以最大利润和最大捕获量为目标，分别应用微分方法、二次函数理论及Gordon理论，研究了同时捕获及单独捕获的捕获策略。