1) Undecided parameter method
待定参数法
2) parameterization approach
参数待定法
1.
For those complex optimal consumption and portfolio problems whose analytical solutions are unavailable according to the existing methods,this paper proposes a framework of approximation algorithm based on the parameterization approach and genetic algorithm.
针对由现有理论和方法求不到显式解的复杂最优消费组合问题,提出基于参数待定法以及遗传算法的数值逼近解算法。
3) undetermined parameter
待定参数
1.
From Upper bound theorem with an undetermined parameter,a general solution of indentation force corresponding to different frictions was obtained through parametric and improper integrations.
以矢量分析法建立了平冲头压入半无限体速度矢量场并证明其散度为零·由上界定理与待定参数法经参量积分与广义积分得到了不同摩擦条件下冲头压力 p的通解·证明了m =0时 ,通解的最小上界值与Hill滑移线解一致·给出了不同摩擦条件 p的最小上界值表达式及m与θ的关系式·结果通过m对 p影响的定量分析得到冲头压力与摩擦系数有关的不同结论
2.
Aiming at the influence of the gross error to the estimated value of the parameter, when determining the undetermined parameters in the negative exponential function using weighted least square method, the paper presents the robust solution of the undetermined parameters.
该文针对在用加权最小二乘法确定负指数函数中待定参数时，粗差对参数估值的影响，提出了待定参数的抗差解法，并通过实例证明了这一方法的有效性。
4) Method of Undetermined Coefficients
待定系数法
1.
The application of method of undetermined coefficients in higher mathematics --To cultivate vocational students capacity of induction and application;
待定系数法在高等数学中的应用——培养高职学生的归纳及应用能力
2.
It can be structured by interpolation or be got by method of undetermined coefficients.
利用差分论证了等幂和一般公式的唯一性,它可用插值法构造,也可用待定系数法求得。
3.
In this paper, two integral variation methods, method of undetermined coefficients and method of direction variation integration, which were first set up for the inverse variation problem of potential functions on KdV equation, are respectively applied to the inverse variation problem of the mKdV equation and the Harry Dym equation.
针对 Kd V方程势函数的变分反问题所建立的一类积变分变分反问题的两种积变分方法 ,待定系数法和直接积变分法 ,推广应用到 m Kd V方程和 Harry Dym方程势函数的变分反问题 。
5) undetermined coefficient method
待定系数法
1.
Up-wind scheme based on the undetermined coefficient method
基于待定系数法的改进迎风格式
2.
By using the undetermined coefficient method, a new scheme is derived from the HAUC2 scheme to simulate the two dimensional convection-diffusion equation.
运用待定系数法,建立了求解二维对流扩散方程的HAUC2格式。
3.
A new higher accuracy scheme named as ILF(Improved Leap-frog) scheme is developed by (using) the undetermined coefficient method to improve Leap-frog scheme.
运用待定系数法,对Leap-frog格式进行了改进,构造出一新的高精度ILF格式,新格式有非保守型和保守型两种。
6) method of undetermined coefficient
待定系数法
1.
Computing the equations of beams deflection curve by method of undetermined coefficients is expounded,and expressions of undetermined coefficients are deduced.
阐述用待定系数法解梁的挠曲线方程，推导出待定系数的表达式。
2.
By applying the method of undetermined coefficients,this paper is devoted to finding a particular solution for a kind of systems of three-dimensional second-order differential equations with constant coefficients.
采用待定系数法,给出了非齐次项为n次一元多项式的三维二阶常系数线性微分方程组的特解公式,并通过举例验证了特解公式的正确性。
3.
By introducing, a new transformation and selecting appropriate trial functions,nonlinear partial differential equations can be converted to algebraic equations,and their related coefficients can be easily determined by making use of the method of undetermined coefficients.
通过引入一个变换和选准试探函数 ,进行求偏导数运算 ,将非线性偏微分方程化为代数方程 ,然后用待定系数法确定相应的常数 ,最后得到其解析解 。
补充资料：反应曲线参数整定法
分子式：
CAS号：
性质：控制器参数整定方法的一种。先在开环条件下对过程施加阶跃形式的控制作用，并做出过渡过程曲线。该曲线称为反应曲线，可由而定出对象的增益、时滞和时间常数。然后按一定的公式，由对象参数计算出在采用P、PI或PID控制算法时应选取的比例增益(或比例度)、再调时间和预调时间的参数值。
CAS号：
性质：控制器参数整定方法的一种。先在开环条件下对过程施加阶跃形式的控制作用，并做出过渡过程曲线。该曲线称为反应曲线，可由而定出对象的增益、时滞和时间常数。然后按一定的公式，由对象参数计算出在采用P、PI或PID控制算法时应选取的比例增益(或比例度)、再调时间和预调时间的参数值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条