查询词典 simultaneous equations

The new equation also has a great advantage over all of the previous vapor pressure equations including Wagner and Xiang equations in that it can be used to extrapolate extraordinarily from the usual range in which data are available both to the critical point and to the triple point.

利用第二音速维里系数与势能模型之间的关系，本文提出了一种新的拟合Lennard-Jones、Kihara和方阱等势能模型参数的方法，并得到了一些简单流体和制冷工质的相应势能参数。

The polynomial function bases are used to form the approximately matching function. Moreover, the discrete values of grey image is transformed to polinomial function that are exact fit at the considered pixel locations. As a result, The mathematical operations performed such as derivation, integration, and gradient evaluation also give out the polynomial functions, therefore, the system of undetermined coefficient equations is derived to be a system of linear algebraic equations.

我们把立体匹配过程看作泛函的极小化过程，因此选用变分问题近似解法的Ritz法构造数值算法，以多项式函数为基构作匹配函数的近似解，进而又利用多项式过样值点的拟合将离散的灰度图象变换为多项式函数，因此计算中所需的求导，积分，及梯度运算的结果仍然是多项式函数，最终将待定系数方程组化为线性代数方程组。

Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient method for constructing polynomial conservation laws of nonlinear differential-difference equations was improved. Furthermore, a Maple package CLawDDEs was developed to automatically derive conserved densities and associated fluxes of polynomial differential-difference equations.

基于吴消元法和"分治"策略，改进了基于标度不变性构造非线性微分差分方程多项式形式守恒律的待定系数算法，并在计算机代数系统Maple上实现了改进后的算法，其中的软件包CLawDDEs可自动推导出微分差分方程的守恒密度及连带流。

The Schroedinger Equation with unitary evolution equations is a matrix differential equations, so Wei-Norman decomposition can be used for solving the multi-level quantum systems.

Wei-Norman分解对于分析矩阵微分方程的解是比较成熟的理论，含有幺正演化矩阵的薛定谔方程是矩阵微分方程，所以可以利用Wei-Norman分解来分析求出多能级量子系统的解。

Redundant driving structure designed based on a new type of universal Cartesian serial-parallel manipulator, kinetics equations and Euler equations constructed, complete analysis of each jointed points of the moving platform carried out, inverse kinetics solution can be obtained with the given parameters, which include the position and orientation of the manipulator, applied force on the output shaft, parameters of motion of output shaft and connecting bar and sliding block, computer programming adopted to get the valid data and its figure, thus found the perfect show of this redundant driving structure compared to the primary mechanism without redundant driving.

对全新结构的万能直角串并联机构进行冗余驱动设计，通过建立动力学万程和欧拉方程，对机构的动平台各输入铰点处的受力状况进行了全面的分析，已知机构在给定空间位置和姿态下的输出端的受力、主轴的运动参数、连杆的运动参数、水平和垂直运动滑块的运动参数时，可以反向求解机构约动力学反解，通过计算机语言编程计算和绘图得至（直观有效的结果数据，由此得知冗余驱动在改善原机构的动力学特性方面的良好表现。

Based on the variation principle, the corresponding finite element equations for the thermoelstic and heat conduction equations are obtained.

根据变分原理，得到热弹体运动方程和热传导方程相对应的有限元方程。

In this thesis, in order to calculate the viscid effect, Euler equations+boundary layer correction method and N-S equations+S-A turbulent model method are introduced.

另外，本文在计算流场的粘性影响时，分别采用了附面层修正+Euler方程和S-A湍流模型+N-S方程两种方法。

Then, we offer two applications to nonlinear Volterra type integral equations and the initial value problems for ordinary differential equations in Banach spaces.

在第二节中，通过建立新的比拄定理，在反向上下解条件下，椰了BaDach 空间中下列一阶非混合型徽分－积分方程周用边位问题仔BVP） I y＝＝歹u.X。

And two halance equations and two vorticity equations corresponding to these f...

于是，我们得到了相应于这两个■的两个方程组，它们是：■此处▽是水平梯度算子。J是 A 和 B 的雅可比函数。

And two halance equations and two vorticity equations corresponding to these field are sol...

于是，我们得到了相应于这两个■的两个方程组，它们是：■此处▽是水平梯度算子。J是 A 和 B 的雅可比函数。

That's what makes this mod unique.

这也正是这个MOD独特。

I now feel furious and want to do something.

现在我觉得非常气愤，想做点什么。