查询词典 quadratic

The algorithm based on the quadratic model is a special exmaple of our algorithm.

基于二次模型的相应算法是该算法的特例。

This book gave us the first systematic solution of linear and quadratic equations.

这本书第一次系统的提出了线性方程和二次方程的解法。

In chapter 3,we dig out two families of invariant quartic curves of a quadratic system.

第五章讨论向量场具有对称中心的二次系统，利用系统的不变双曲线及不变四次曲线，我们确定了一个对应极限环（1.1）分布的二维参数区域，其边界的构成为如下几种常见的极限环分枝：霍夫分析，庞加莱分枝，同宿分枝和异宿分枝。

The results indicate that the reconstructed quintic spline curve can ensure the cutter transit well for corner contour, and that the cutting performance is superior to that of the quadratic one.

同时也重构了一条四次样条曲线与五次样条曲线作对比分析，结果表明，五次曲线能使裁刀获得良好的且较四次曲线优越的轮廓拐角加工性能。

A method to construct an interpolation curve of rational quadratic B-spline G continuity is given.

给出二次有理B样条G2连续拼接的条件，提出一种二次有理B样条G2连续插值曲线的构造方法。

Firstly, the curvature continuity conditions between two adjacent rational quadratic curve segments are derived. Secondly, an optimal algorithm is presented for solving out the tangent lines at every points of a closed point set in a plane.

首先导出了两相邻二次曲线段间曲率连续的拼接条件，然后提出了求解平面上一个闭的点列中每一点处的切线的最优算法。

On terms that the metal products were supposed to be scrapped according to the normal distribution with service life,the calculation method for the theoretical value of reclamation resource of depreciated metal was studied for the conditions that the relation between consumption volume of metal and time was linear and quadratic respectively.

在假设金属制品报废概率随时间呈正态分布的条件下，研究了金属消费量随时间变化呈线性函数或二次函数两种情况下，金属折旧再生资源量理论值的计算方法。

By using Galerkin's method the partial differential equation is reduced ordinary differential equation with quadratic nonlinearity.

对于非线性运动方程，我们引入了外加强迫力和阻尼对系统的摄动，借助Galerkin方法从非线性偏微分方程得到了含二次非线性的常微分方程。

By using Galerkin's method the partial differential equation is reduced ordinary differential equation with quadratic nonlinearity. The results of qualitative analysis indicate that the system has homoclinic orbit.

定性分析表明，对于前屈曲和后屈曲两种情况，系统的相图具有相同的同宿轨道，只是位置在相平面上沿横轴发生了一个简单的平移。

First of all, on the base of the reduced gradient method of Wolfe, we added accurate one dimension searching method into it and gained a new algorithm (algorithm 1,2) for the nonlinear programming with linear equality constraints and quadratic programming problems, and proved convergence of algorithm, then, we use above algo...

首先本文在Wolfe既约梯度法的基础上，针对具有线性等式约束的非线性规划问题和二次规划问题，引入了精确的一维搜索，得到了带一维搜索的新算法(算法1、2)，并给出了算法的收敛性证明。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。