在波动方程的经典解法中，初始条件与边界条件都要充分光滑，介质系数也不能出现间断。
In the classic solution of wave equation, it is required that the initial and boundary conditions should be smooth enough and any discontinuities are not allowed in medium coefficients.
当在空间位置出现突变时，偏微分方程的经典解法如有限元法和加权残差法等无法保证解的精度和收敛性。
The problems of resolution and convergence are increased by classic methods such as FEM and WRM when the solutions exhibit sharp changes.
对于背包问题这样一个经典的递归问题，发现了它的不需栈支持的循环解法，并由此说明其存在并行。
For knapsack problem (which is a classical recursion problem), find its round solution which need not stack to support, then prove it exists parallel solutio.
对于背包问题这样一个经典的递归问题，发现了它的不需栈支持的循环解法，并由此说明其存在并行解。
For knapsack problem (which is a classical recursion problem), find its round solution which need not stack to support, then prove it exists parallel solution.
数十年来，四元数及其解法成功地应用于捷联惯性导航和制导系统中，成为经典的算法。
Quaternion method, which has been successfully applied to the Strapdown Inertial Navigation and Guidance for tens year, is classical.
本文用自由电子激光器经典理论的数值解法，给出一组稳定脉冲解。
The stationary pulse solutions for a free electron laser are obtained by using the classical theory.
本文讨论了非经典阻尼系统运动方程的几种解法，并编制了通用软件。
This paper discusses the for methods of solving the coupled-by-damping equations of motion and their implementation on PC computers.
本文讨论了非经典阻尼系统运动方程的几种解法，并编制了通用软件。
This paper discusses the for methods of solving the coupled-by-damping equations of motion and their implementation on PC computers.
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