查询词典 newton

For solving nonlinear optimization problems, Newton-like method is one of the most efficient methods and it is an important problem to improve the method.

在大规模稀疏非线性最优化的研究中，Newton型方法一直受到人们的青睐，对它的改进一直是人们关注的问题。

At the same time, the time taken to solve the system of normal equations for the least-square method is also reduced by using matrix updating techniques associated with Broydens quasi -Newton method.

同时运用拟牛顿矩阵校正技术解最小二乘方程组也减少了大量的计算时间。

Iterative method with numerical integration, error under their control, using Newton iteration method.

详细说明：用迭代法计算数值积分，误差自己控制，用牛顿迭代法实现。

Numerically, Newton was saying that the mass of each cubic meter of earth was about 5, 000 or 6

从数值上说，牛顿所说的是地球每立方米的质量是5，000或6，000公斤。

Post-Newton metric was got inside and outside a uniform uncompressed ideal fluid oblate ellipsoid at rigid rotation.

摘要在后牛顿近似下，得到由均匀不可压缩理想流体在刚体自转下形成的扁球体的内外度规。

Newton method ; iteration ; order of convergence

牛顿法；迭代；收敛阶

As for the optimization problem, the damped Gauss-Newton Method algorithm is employed for obtaining its solution, and analysis the global convergence of the algorithm, also, the superlinear convergence rate and two order convergence rate of the algorithm is given.

对该优化问题，我们用阻尼高斯牛顿算法求解，并对算法的全局收敛性和超线性收敛速度进行了分析。

In this paper, based on the flexible multibody dynamics model of the virtual axis hybrid polishing machine tool, the differential — algebra hybrid equations is calculated by the Newton- Raphson method. The variety of the moving displacement, the velocity and the acceleration for the moving platform, leg, slider on the 3- PTT parallel mechanism and the pose curve of the series mechanism are obtained.

论文主要完成了在已经建立的虚拟轴混联研抛机床多柔体动力学模型基础上，应用牛顿—拉斐逊（Newton-Raphson）数值计算方法求解微分—代数混合方程组，得到3-PTT并联机构动平台、支杆、滑鞍各部件的运动轨迹、速度和加速度变化规律，以及串联机构的姿态变化曲线。

In the chapter 4, we discussed the generalized linear inversion method of direct current IP data from the angle of the least squares method. The computed speed of inversion can be greatly raised by calculating the partial derivatives matrix combining the reciprocity principle with Broyden\'s quasi-Newton method.

在第四章中，从最小二乘广义线性反演的角度，探讨了直流激电数据的广义线性反演方法；在偏导数矩阵的计算过程中，通过将互换原理与Broyden拟牛顿技术相结合的计算方式，可大大提高反演的运算速度。

So, what you've got is not Newton,but Pascal.

所以你抓住的不是牛顿，你抓住的是帕斯卡。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。