[数] 数值计算
By numerical calculation in order to change the values of eigenvalues , and then calculate the corresponding wave function.
通过数值计算的方法依次改变本征值的取值，然后计算出相应的波函数。
In this paper, an organic combination of surface molding and numerical calculation is applied to optimization design for centrifugal pump impellers.
本文将曲面造型与数值计算有机的结合在一起应用到离心泵叶轮的优化设计中。
The time distance curves of travel time obtained by numerical calculation showed the feature of the curves and effectiveness and feasibility of the calculation method.
通过数值计算得到了旅行时时距曲线，表明了反射时距曲线的特征，证明了计算方法的有效性和可行性。
Calculate the sensitivity coefficient by numerical calculation during estimating the uncertainty that brought by the uncertainty of the direct measurement parameters.
在评定由于各个直接测量参数引入的不确定度时，用数值计算的方法计算灵敏度系数。
The thermal effect of high-energy laser produced within the beam controller and its influence on laser far-field spot are analyzed with numerical calculation method.
采用数值计算方法分析了高能激光在光束控制器内部传输所产生的热效应及其对激光远场光斑的影响。
Point out the fluid region in numerical calculation.
指出了数值计算时的流体域范围。
As an application example, a formula for rupturing time of inner-pressured rotating cylinder irradiated by laser beams is presented, and the results agree well with that of numerical calculation.
作为温升估算方法的一个应用实例，推导了转动充压柱壳在激光辐照下破坏时间的解析公式，与数值计算结果吻合得较好。
This method uses heat loss rate as iteration variable, gives rational initial iteration value and variable correction strategy to improve the stability and accuracy of numerical calculation.
该算法以热损失速度作为迭代变量，通过给定合理的迭代初值和变量修正策略，来提高数值计算的稳定性和数值精度。
So, numerical calculation technology of electromagnetic field and imploring a novel calculation method are great value subject.
因此，电磁场的数值计算技术，探索新的计算方法，是一个很有价值的课题。
The results of numerical calculation coincide with the results of physical analog experiments.
数值计算的结果与物理模拟实验的结果是相符的。
This paper researched on the secondary and jet wake structure in centrifugal impeller by numerical calculation.
采用数值计算方法来研究离心叶轮内的二次流和射流-尾迹结构。
The result of numerical calculation indicates that semiconductor optic amplifier has a good responding characteristic and higher conversion rate in all-optical wavelength conversion.
数值计算的结果表明，半导体光放大器在全光波长转换中具有很好的线性响应特性和较高的转换速率。
This article discusses the interference range of plane parallel film and non-parallel plane film in detail and gives the numerical calculation result.
较详细地讨论了平面平行薄膜与不平行平面薄膜的干涉定域问题，并给出了数值计算结果。
This new method is of considerable value in theory and application and also is one of the effective techniques for solving algebraic equation by numerical calculation.
此方法是用数值计算求解代数方程的比较有效的方法之一，具有一定的理论价值和应用价值。
In order to investigate and develop numerical calculation method for Schr odinger equation, we apply the finite difference method to eigenvalue problems in quantum mechanics.
为研究和发展薛定谔方程的数值计算方法，本文将有限差分法应用到量子力学求解薛定谔方程本征值问题。
The physical concepts are clear in this method, and its numerical calculation, compared with those of other methods, are stable, convergent and fast.
该方法物理概念清晰，数值计算稳定收敛，计算速度快，并与其它方法的计算结果进行了比较。
For a typical assembly stress problem, digital simulation is conducted by means of the hybrid method with different numerical calculation methods.
针对一个典型的装配应力问题，运用不同的数值计算方法，对混合求解法进行了数值模拟。
The numerical calculation of integration is an important branch of numerical analysis.
积分的数值计算是数值分析的一个重要分支。
The effect of reactive load to resonance frequency of horn is analyzed by numerical calculation.
应用数值计算方法，分析了力抗负载对变幅杆谐振频率的影响。
For the motion of a textile mechanism, the result is compared with that obtained from numerical calculation.
并对一个纺织机构的运动把所求得的结果和数值计算结果进行比较。
The theoretical investigation in ionic fluids has been done with analytical or numerical calculation of integral equations.
对于离子液体的研究理论上主要是用解析或数值计算求解积分方程组。
Through numerical calculation, the influences of the variations of the modulus and degree of saturation of soil layer and cross-section of the pile on the response are analyzed.
通过数值计算，分析了土层模量变化、土层饱和度变化以及桩身截面变化对桩顶频域和时域响应曲线的影响。
Finally, we study dynamical evolution of this system using the numerical calculation.
最后我们运用数值计算的方法研究了此系统的动力学演化。
The finite-difference time-domain (FDTD) method is extensively applied in numerical calculation, simulation and design of electromagnetic structures because of its powerful capabilities.
时域有限差分方法（FDTD）由于其强大的功能在电磁结构数值计算、和模拟设计中得到了广泛的应用。
We gave the lecture on the basis of logical algebra in order to illustrate how the computers operate numerical calculation by means of logical calculation.
我们在讲非计算机专业的计算机文化基础“时，从逻辑代数讲起，阐明计算机是如何用逻辑运算完成数值计算的。
The result shows that the numerical calculation model of interface of block-structured grids in reliable and can be used for complex geometry shape.
结果表明，本文建立的分区交界面数值计算模型是可靠的，可用于处理几何形状复杂的流场模拟。
Monte Carlo method can be used to effectively solve complex engineering problems, and MATLAB has powerful numerical calculation function.
蒙特卡罗方法可以有效地解决复杂的工程问题，而MATLAB具有强大的数值计算功能。
数值计算（numerytical calculation）是指通过数学方法和计算机技术，用近似算法求解数学问题的过程。它主要应用于无法通过解析方法获得精确解的复杂方程或物理模型，例如微分方程、积分运算和高维矩阵求解等领域。
这一概念包含三个核心要素：
在工程实践中，数值计算支撑着关键技术创新。例如NASA在航天器轨道设计中采用龙格-库塔法求解运动方程（《航空航天数值方法》，剑桥大学出版社），半导体行业使用有限元分析进行芯片热力学仿真（IEEE Xplore数据库收录论文）。
该领域的权威理论基础源自克莱门特学院数值分析教材提出的三大原则：稳定性（Stability）、收敛性（Convergence）和相容性（Consistency），这为现代计算数学提供了方法论框架。
“numerical calculation”（数值计算）是指通过数学方法和算法，利用计算机或手动计算来获得数学问题的近似解的过程。它与解析解（精确的数学表达式）不同，常用于无法直接求解的复杂问题。以下是详细解释：
数值计算通过离散化、迭代或逼近技术处理连续数学问题，例如：
数值计算需考虑：
例如，计算积分时，梯形法则的误差与步长平方成正比，而辛普森法则误差与步长四次方相关，体现了不同方法的精度差异。
若需具体案例或算法实现细节，可进一步说明应用场景。
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