利用正弦多项式近似直接产生数字正弦波，而无需限制相幅转化速度的ROM。
This design dispenses with ROM which mainly limits the converting speed of DDS, but USES SIN function polynomial approximation directly generating digital SIN wave.
阻抗函数用分式多项式近似，并表达为串接的并联电阻、电感的福斯特电路形式。
The impedance function is approximated by fractional polynomial, which is represented as a series connection of parallel RL elements (Foster form).
数值结果表明：在隐式一阶多项式近似下，对合适的反应性输入能够取得足够精确的结果。
The numerical results show that for reasonable reactivity inputs, a sufficient accuracy can be achieved in first order polynomial approach presented here.
当位移和动量的拉格朗日多项式近似阶数满足一定条件时，可以自然导出保辛算法的不动点格式。
A fixed point iteration formula can be derived when the order of the approximate polynomials of displacements and momentum satisfy some certain conditions.
本文提出一种基于导频辅助、多项式近似和信号重建的信道估计通用方法，适用于高速移动环境。
A method based on assisted pilot and polynomial model is proposed for high speed mobile environment.
因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。因此，为使结果具有唯一性。
Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation.
在求解域上，利用迦辽金法，将泊松方程的非齐次部分用一个5阶多项式近似表示，而这些多项式对应的方程特解可以很容易获得。
In the solution domain, thePoisson equation is approximated with the 5-order polynomial using Galerkin method, and the particular solution of the polynomial can be determined easily.
六角形节块内的中子通量密度分布采用高次多项式近似表示，最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
随后又给出了几类插值多项式的局部近似空间。
Subsequently we present local approximation spaces of some interpolation polynomial.
最后，基于此定理，给出了选址问题的一个多项式2近似算法。
Finally, based on the theorem, a polynomial 2 approximation algorithm for the location problem is presented.
耦合径向基函数和多项式基函数，形成一种新的近似函数。
A new approximate method based on coupled radial basis functions and polynomial basis functions is presented.
给出了一个多项式时间近似方案(PTAS)。
A polynomial time approximation scheme (PTAS) for this problem is presented.
进行各种有理式计算，求多项式、有理式方程和超越方程的精确解和近似解。
Various RATIONAL, polynomials, RATIONAL Exact solutions of equations and transcendental equations and approximate solutions.
同时，还给出了该问题的多项式时间近似算法。
A polynomial approximation algorithm for the problem is given.
给出了用切比雪夫多项式方法，求时滞系统的无穷时间线性二次型反鐀控制律的近似解析解的新方法。
A new algorithm derived from Chebyshev polynomials is presented for the approximate analytic solution of infinite-time linear-quadratic optimal feedback control law for time-delay systems.
并且对这两类问题都研究了他们的计算复杂性并给出了最优算法或者多项式时间近似算法。
For both problems, we study their computational complexity and present optimal algorithms or polynomial time approximation algorithms.
定理2.1：算法2.1是一个多项式时间近似方案定理2.2程序结束时每个要求所对应的两点之间的路径是唯一的。
Theorem2.1: Algorithm2.1 is a Polynomial time approximation scheme Theorem2.2 When Algorithm2.1 end, the path between each node pairs which.
本文用适当的多项式函数近似扩散光波导的高斯折射率分布函数，推导了导模有效折射率的解析形式渐近解。
The Gaussian index profile of a diffused optical waveguide is approximated by an appropriate polynomial, and the asymptotic solutions of the mode efficient index is derived in a analytical form.
其次，在数值求解该组方程的过程中，未知函数裂纹表面位移差被近似为位移差的基本密度函数与多项式之积。
Then these equations are solved numerically by approximating the unknown displacement difference to a product of the fundamental density function and polynomials.
试验数据分析表明，测站钟差经一阶多项式拟合后的残差可近似为零均值的测量噪声；
The experiment data analysis results show that the clock residual error of monitor station after fitting by 1st order polynomial is approximately taken as noise with zero mean.
通过对变形曲线的分析，提出用二次多项式曲线来近似工件的变形曲线。
By analysis of the deformation curves, it is proposed that the deformation curve of the work piece can be expressed approximately by a 2-order polynomial curve.
在计算机上进行统计计算，采用以多项式表示的具有一定精度的近似公式，要比使用统计表格方便。
Using the approximate formulae established by polynomial with certain accuracy in statistical analysis on computer is more convenient than statistical tables.
在计算机上进行统计计算，采用以多项式表示的具有一定精度的近似公式，要比使用统计表格方便。
Using the approximate formulae established by polynomial with certain accuracy in statistical analysis on computer is more convenient than statistical tables.
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