我希望在这明白,参数方程是考虑直线的一个很好办法。
So, I hope you've seen here that parametric equations are a great way to think about lines.
算例表明，描述锚链线形状的参数方程是合理的。
Numerical example showed that the parametric equation is rational to describe the shape of mooring line.
我们建立有两个变量φ和θ的球面的参数方程,它们恰好是,球坐标系统的一部分。
We are finding a parametric equation for the sphere using two variables phi and theta which happen to be part of the spherical coordinate system.
而当我们考虑运动点的轨迹的时候，轨迹可以称作是参数方程。
And, so when we think of the trajectory of the moving point, that's called a parametric equation.
我们还学过怎样理解直线方程，它们有些特性，因为我们是从参数方程角度理解。
Ok, we've also seen how to look at equations of lines, and those were of a slightly different nature because we've been doing them as parametric equations.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
当所有基础方程都能用一组定常参数值来描述，正如熟知的RLC电路的情况，就称该系统是稳态的，或时不变的，或常系数的。
When all elemental equations can be described by a set of constant parameter values, as in the familiar RLC circuit, the system is said to be stationary or time-invariant or constant coefficient.
本文是在MPI网络并行环境中，将求解二维热物性方程参数的反问题用正则化方法结合并行遗传算法进行数值求解。
This thesis focuses on determination of parameters in a two-dimension heat conduction equation on the MPI network parallel environment, by solving an inverse problem using the regularization method.
该算法是在粗确定插补点参数后，引入误差补偿值，通过求解矩阵方程提高插补点的计算精度。
The interpolation precision was improved by introducing error compensation and solving the matrix equation after interpolated points' parameter had been computed roughly.
可惜的是，当采用一个十分庞大的附加参数组时，在某些几何条件下将导致很坏的法方程系状态，从而使测求的平差结果很差。
Unfortunately, introducing a comprehensive set of additional parameters can produce a bad condition for normal equations under certain geometry, so that the adjusted results are poorly determined.
参数识别反问题是偏微分方程反问题的一类，也是在自然科学与工程技术的各领域比较常见的问题。
Parameter identification problems belong to the partial differential equations inverse problems. They are also common in the field of natural science and engineering.
这个新的立方型状态方程是目前计算水的相平衡参数和饱和湿空气性质较好的数学模型。
This new cubic type of status equation currently represents a relatively good mathematical model for calculating the phase equilibrium parameters of water and the properties of saturated humid air.
磨矿产品粒度特性方程序的参数不可能是常数，而是一个变数。
The Parameter in the equation of size degree feature for ground products is a variable rather than a constant.
传输线可以看作集中参数二端口网络的级联，其数学模型—电报方程是一阶双曲型偏微分方程组。
Telegraph equations, can be looked as cascade connection of two-port network of lumped circuit of transmission line, is a hyperbolic partial differential equations.
椭圆的参数方程的几何意义是众所周知的(见例1)。
The geometric meaning for the parametric equation of ellipse is a familiar thing (See example 1).
本文是通过准数方程对钢包顶吹惰性气体搅拌最佳工艺参数进行模型研究的结果。
This article is the result of the research for determining the optimum pro-cessing parameter of ladle top injection of inert gas, by using cold model imitation and criterion equation.
其优点是可选择少量的参数，公式简单，但需要求解较大阶数的方程组和确定模型的最优结构。
Nevertheless, it requires solving system of equations with larger degree and determining the optimum structure of this model.
首先说明了参数方程的基本定义，了解什么是参数方程。
Firstly illustrates the basic definition parameter equation, understand what is the parameter equation.
但事实上，这种方法是不妥当的，其错误主要来自于下述假定：对热传导方程的一级修正对物理学的所有参数都成立。
In fact, this method is improper. The mistake results mainly from the following hypothesis: the first order correction of the heat conduction equation is tenable for all parameters in physics.
幂律流体的本构方程是许多工业过程中流体的流变特性参数模型。
The fluid rheology is modeled by the power-law constitutive equation, which is representative of many industrial process liquids.
介绍一种求解偏微分方程混合问题的新方法——含参数展开法，利用此方法求解一些实例是很方便的。
In this paper, a new method to solve the mixed problem-the method of parametric development is given It is convenient to solve some examples.
本文运用卡尔曼滤波原理，提出了一种新的神经网络学习算法。该算法的学习速度是由带时间参数的里卡蒂微分方程来确定的。
In this paper, making use of Kalman filtering, we derive a new back-propagation algorithm whose learning rate is computed by Riccati difference equation.
其中的反馈参数是通过求解非线性微分方程组的两点边值问题而得到的。
The feedback parameters are obtained by solving a nonlinear, two-point boundary-value problem.
在工程控制系统中很重要的情形是受控对象是分布参数系统，由网络组成的装置——控制器是由常微分方程描述的集中参数系统。
In an engineering control system it is of great importance that the control object is described by a distributed parameter system while the controller is governed by a lumped parameter system.
三维波动方程叠前深度偏移是复杂介质中进行构造成像、弹性参数反演的重要环节。
The 3-D wave equation prestack depth migration is one of the most important techniques in the structure imaging and the inversion of elastic parameters of complex media.
双口网络t参数的理论计算，是通过建立基尔霍夫电压和电流方程，经过代数运算求出t参数。
The theory calculation of double network t reference data, based on the kirchhoff equation of electric voltage and current to get t reference data through algebra calculation.
该方法的优点是它只要求解线性方程组一次，就可以算出所有网络输出对所有网络参数的灵敏度阵。
The main advantage is that it can calculate sensitivities of all network outputs with respect to all network parameters by solving a system of linear equations only once.
然而，岩石的破坏和断裂是紧密相联的，岩石强度准则的材料参数和断裂理论的断裂韧度存在特定的方程关系。
But the damage and fracture of rock is closely related to each other. And the relationship between strength criterion parameters of rock and fracture toughness of fracture theory is particular.
通过试验研究指出，磨碎过程是一个动态过程，故动力学方程序的参数也将是变化的。
In this paper, it is stated that grinding process is a dynamic one. Then the parameters of grinding dynamics equation will change.
与地面固定基座机器人不同的是，空间机器人的运动学方程中含有动力学参数。
Different from that of the fixed-base robot, the dynamic parameters exist in the kinematic equations of the space robot.
应用推荐