In this paper, the steepest descent curve of quadratic function through one point was first defined from the steepest descent direction of quadratic function at one point.
首先,从二次函数在一点的最速下降方向出发定义二次函数过一点的最速下降曲线;其次从二次可微函数最速下降曲线得到利用其Hessian阵的特征值构造的正定矩阵,进而利用该正定矩阵可以构造在该点的下降方向。
Combing the potential reduction method and steepest-descent algorithm,we establish a new steepest potential-reduction method,which not only improve the iterative speed,decreasingcomputation,but maintain the convergence result.
利用势缩减牛顿算法与最速下降算法,我们建立了求解约束方程的一种新的最速势缩算法,不仅提高了迭代速度、减少计算量,重要的是保证了算法的收敛性结果。
Study on the solution of brachistochrone and the effect of friction;
最速降线求解和摩擦力影响的研究
Based on physics,it was proved concisely that the cycloid is both brachistochrone and isochronous pendulum.
介绍旋轮线的主要性质及其在日常生活与物理中的一些实例,并结合物理学知识对其最速降线与等时性进行简洁的证明。
The brachistochrone of an electric ball in the electromechanical coupling field was investigated according to variational method,and the corresponding governing equation(Euler-Lagrange equation) was derived.
通过变分原理的方法研究力电耦合场中带电小球的最速降线问题,导出其轨迹控制方程,即Euler-Lagrange方程。
The Modified Steepest Descent Method──Best Point in Steepest Descent method
改进的最速下降法─最好点最速下降法
An Inexact Steepest Descent Method for Finite Element Model Updating Problem
有限元模型修正问题的不精确最速下降迭代解
CONVERGENCE THEOREMS OF THE STEEPEST DESCENT METHOD FOR GENERALIZEDΦ-ACCRETIVE OPERATORS
关于广义Φ-增生算子的最速下降法的收敛定理
Bézier curve fitting based on genetic algorithm and steepest descent algorithm
基于遗传算法和最速下降法的Bézier曲线拟合
Convergence of Generalized Steepest Descent Approximation to Quasl-accretive Operators Equations
拟增生算子方程的广义最速下降逼近的收敛性
The path search using Steepest Descent Approach, the cross country path planning about fuzzy environment for an autonomous land vehicle is implemented.
最后用最速下降法进行路径搜索，实现了自主车在模糊环境下的越野路径规划。
The maximum practical speed of electronic connections falls off quickly as cable lengths increase.
电子连接的最大实际速度会随著缆线长度的增加而快速下降。
a downhill racer.
快速下降的滑雪运动员
cant descending anti-overspeed device
悬臂下降超速限制器
Body weight and physical strength diminish rapidly.
体重和体力迅速下降。
By the time of young ear formation the decreasing rate was slowed down.
随后迅速下降,至幼穗形成期下降速率减缓。
Continuous reduction of power assistance as speed decreases, providing maximum power assistance when the vehicle is at rest (for manoeuvring, parking)
电动辅助转向力随车速降低而逐步降低，至汽车停下后（如调位或驻车）达到最大。
Prices have reached rock-bottom.
物价已下降到最低点.
Production has been lagging behind recently.
最近,生产一直在下降。
Idle is rough, and high-speed miss and power loss may result.
导致怠速不稳，高速缺火和功率下降。
Reduction in growth rate and vigour. Darkening of the leaves. Decreased drought resistance.
生长速度和活力下降。叶色变暗。抗旱能力下降。
Brachistochrone solution of electric ball in electromechanical coupling field
力电耦合场中带电小球的最速降线解
The accuracy of recall and recognition are at their best immediately after encoding the information, declining at first rapidly, then gradually.
刚刚接受信息后的回忆和识别力是最准确的，它先是迅速下降，然后逐渐减弱。