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截断误差     
相关语句
  truncation error
     The later truncation error is O(τ2+h3)and the stability condition is 0
     后一种格式的截断误差可提高到O(τ2+h3),稳定性条件是0
短句来源
     They contain non negative parameter α 1, α 2 and α 3, with truncation error up to O ((Δ t ) 2+(Δ x ) 4) at least.
     它们含有非负参数α1 ,α2 和α3 ,其截断误差至少可达 O((Δt) 2 +(Δx) 4 ) .
短句来源
     In this paper we construct a three-level explicit difference scheme for solving SchrOdinger equation. Its truncation error is O(τ2 + h2) and the stability condition is r =τ/h2 <17~(1/2)/4 .
     文章构造了一个解SchrOdinger方程的三层显式差分格式,截断误差达 O(τ~2+h~2),稳定性条件为r=τ/h~2<17~(1/2) /4
短句来源
     E. is constructed. The stability condition is r= Δ t/ Δ x 2= Δ t/ Δ y 2= Δ t/ Δ z 2<1/2,and the truncation error is O( Δ t 2+ Δ x 4).
     构造了一族解三维抛物型方程的高精度显格式 ,其稳定性条件为r=Δt/Δx2 =Δt/Δy2 =Δt/Δz2 <1/2 ,截断误差为O(Δt2 +Δx4 ) ·
短句来源
     The orders of the local truncation error are all O (τ2+h2+t2/h3) or O(τ2+h4+ (τ/h)2+th).
     第Ⅰ、Ⅱ类格式的局部截断误差的阶为D(τ~2+h~2+ τ~2/h~3);
短句来源
更多       
  truncation errors
     Parameters identification in time domain is accomplished in the paper with no truncation errors of FFT Transform such as the error of energy leakage.
     时域参数识别法无需将测试信号在时域与频域之间变化 ,避免了由FFT变换引起的截断误差 ,如能量泄漏等。
短句来源
     For solving biparabolic equation, the author presents two new classes of three layered implicit difference schemes with tridigonal matrix of coefficients. Their local truncation errors are in the order of O(τ 2+h 2+τh) and O(τ 2+h 2+(τh) 2) respectively.
     提出解双抛物型方程的两类新的具三对角线型系数矩阵的三层隐式差分格式 ,其局部截断误差阶分别为O(τ2 +h2 +τh)及O(τ2 +h2 +(τh) 2 ) .
短句来源
     Two absolute stable and high accuracy semi-explicit difference schemes where r= qt/h3 for solving the initial boundary value problems of the dispersive equation ut = auxxx are constructed. Thc local truncation errors for these difference schemes arc O(t2+ h4+t2/h2)
     本文对色散方程ut=auxxx的初边值问题,构造两个绝对稳定的半显式格式,其局部截断 误差为O(τ2+h4+τ2/h2),精度较高.
短句来源
     A two layered scheme is obtained when parameters α =1/2, β =0. These schemes are proved to be absolutely stable for all positive integers m and for arbitrarily chosen non negative parameters α≥0, β ≥0; and their truncation errors are all in the order of O(( Δ t) 2+( Δ x) 6) .
     当参数α =12 ,β =0时 ,得到一个双层格式 证明对一切正整数m ,该格式对任意非负参数α≥ 0 ,β≥ 0都是绝对稳定的 ,并且其截断误差阶为O((Δt) 2 +(Δx) 6) .
短句来源
     The error sources of a constant gain recursire filter consist of the errors of the initial estimate value, the input random errors and the filter's prediction truncation errors.
     一个常增益递推滤波器的误差源为初始估值误差、输入随机误差和滤波器预测截断误差
短句来源
更多       
  local truncation error
     The orders of the local truncation error are all O (τ2+h2+t2/h3) or O(τ2+h4+ (τ/h)2+th).
     第Ⅰ、Ⅱ类格式的局部截断误差的阶为D(τ~2+h~2+ τ~2/h~3);
短句来源
     The local truncation error can reach the order of O(τ 2+h 6) as the maximum.
     局部截断误差阶数最高可达O(τ2 +h6) .
短句来源
     A class of new three-layer difference sehemes containing biparameters are constructed for convective equation Ut=aUx A double-layer scheme will be obtained in case α= 1/2,β=0. These schemes are all absolutely stable for arbirarily nonnegative parameters, with local truncation error of O(Δt2+Δx4).
     对对流方程ut=aux构造一族含双参数的三层差分格式,当参数α=1/2,β=0时得到双层格式.这些格式对任意非历参数均为绝对稳定的,其局部截断误差为0(Δt2+Δx4).
短句来源
     A three-level explicit difference scheme is proposed for solving four-order parabolic equation Ul+Uxxxx=0. The scheme meets a stability condition of r= △t/△x4<1/8 and shows a local truncation error of 0(△t2 + △x4 ).
     提出解四阶抛物型方程ut+uxxxx=0的一个三层显式差分格式.其稳定性条件和局部截断误差分别为r=△t/△x4<1/8和O(△t2十△x4).
短句来源
     An implicit unconditionally stable of higher accuracy for bi-parabolic equation is derived, its local truncation error is O(τ~2+h~4).
     提出解双抛物型方程的高精度隐式无条件稳定差分格式,其局部截断误差为O(τ2+h4).
短句来源
更多       
  truncated error
     The Truncated Error and Stability of δ Algorithm in the Analysis of Time-Varying Networks
     时变网络分析方法中δ算法的截断误差和稳定性分析
短句来源
     Truncated error of electrical power parameters in digital sampling measurement
     电力参数交流同步采样截断误差的估计
短句来源
     The algorithm can reduce significantly the truncated error of the impulse response model, and can be implemented with less computation effort.
     该算法可有效地减少脉冲响应模型的截断误差并具有少的计算量。
短句来源
     In this paper,for a class of non-stiff problems,the convergence and stability of multistep Runge-Kutta methods are discussed and a prior bound of the global truncated error for this methods is presented.
     本文针对一类非刚性问题,讨论了多步Runge-Kutta方法的收敛性与稳定性,并且给出了该方法的整体截断误差的一个先验界.
短句来源
     Synthesis of fixed-interface component modes,which is developed by Hurly and improved by Craig,is an approximate substructural coupling method that has modal truncated error.
     由Hurty[1]创始的、后经Craig[2]发展的固定界面模态综合法属于具有模态截断误差的常规(近似)固定界面法。
短句来源
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  truncation error
An Estimation of the Truncation Error for the Two-Channel Sampling Formulas
      
The aim of the article is to obtain an estimation for the truncation error in the
      
This resulted from the truncation error between the numerical solution and exact solution of the Reynolds stress equations.
      
Convergence of the truncation error in calculating singular convolutions
      
We consider the convergence of the truncation error and obtain necessary and sufficient convergence conditions as well as some effective estimates for the error.
      
更多          
  truncation errors
Through the introduction of a reference atmosphere, prognostic variables become smoother on the tilted sigma-surface over mountains or a frontal zone, and thus truncation errors are reduced.
      
Truncation errors of selected finite difference methods for two-dimensional advection-diffusion equation with mixed derivatives
      
This paper presents the calculation of truncation errors, namely numerical diffusion and numerical dispersion for various finite difference schemes.
      
The effect of truncation errors is considered in the incremental virtual work equation.
      
Using a different method from [1], by analyzing the truncation errors of schemes, we give the sufficient conditions under which the solution of the difference scheme converges uniformly to the solution of the differential equation.
      
更多          
  local truncation error
For the model to be computationally stable, the local truncation error of integration should be equal to 10-14 and the double precision of the Standard for Binary Floating-Point Arithmetic IEEE 754-1985 should be used.
      
The stability condition and local truncation error for the scheme are τ >amp;lt; 1/2 andO(Δt2 + Δx4 + Δy4 + Δz4), respectively.
      
The form is an expression for the local truncation error for a certain class of difference schemes.
      
By this term we mean meshes on which the local truncation error of the method is approximately constant in some norm.
      
Higher-order Runge-Kutta (RK) algorithms employing local truncation error (LTE) estimates have had very limited success in solving stiff differential equations.
      
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