approximation formula
英 [əˌprɒksɪˈmeɪʃn ˈfɔːmjələ]
美 [əˌprɑːksɪˈmeɪʃn ˈfɔːrmjələ]
近似公式
双语例句
- But, it's the usual approximation formula using the derivative.
但都是使用导数的逼近公式。 - The second one, well, we know the approximation formula already, so I don't need to justify it for you.
第二个，先前已经知道了和这个差不多的公式，所以也不需要给你们证明了。 - In fact, it still works in the general case using this approximation formula.
事实上，在一般情形做近似时，之前的结论仍然适用。 - And this is a placeholder for small variations, delta x, delta y and delta z to get an approximation formula.
这也是微小变化的占位符，由△x，△y，△z得到近似式。 - Now, if we want to change this into an approximation formula, we can.
现在，如果我们要把它改变为一个近似公式。 - And now what this approximation formula here says is that, in fact, the graph of a function is close to the tangent plane.
这里这个近似式的意思是，函数图象和切平面靠得很近。 - And, of course, that is only an approximation formula Actually, there would be higher order terms involving second and third derivatives and so on.
当然，这只是一个近似式，实际上，还有涉及二阶偏导，三阶偏导，或更高阶偏导的项。 - So, the reason is that this approximation formula is reasonable only if the higher order terms are negligible.
，因为只有当高次项可以忽略时，这条近似公式才适用，事实上，这只是一个近似。 - Second, by the definition of potentials based on Poisson equation and sample path, the uniform approximation formula of potentials can be obtained with the discounted and average criteria by reinforcement learning.
其次，由性能势Poisson方程以及样本轨道定义出发，可以建立折扣和平均准则下性能势基于强化学习方法的统一逼近公式。 - Through nu-meral simulation, the variation of P wave elastic impedance with in-cident and azimuthal angle was described; the effect of anisotropic parameters on P wave elastic impedance in arbitrary azimuth and the precision of new approximation formula were analyzed.
通过数值模拟，对纵波弹性阻抗随入射角和方位角的变化特征进行了描述.分析了各向异性参数对不同方位纵波弹性阻抗的影响.以及新近似公式的精度。 - The value which was calculated using this approximation formula of pulse duration was close to that of solving the rate equations by computer.
使用脉宽表示式计算的结果与计算机数值计算相符。 - We obtain an appropriate formula to express the effective electrical conductivity for a two-component materials system which are composed of strongly nonlinear inclusions and linear host, using this approximation formula, we calculate results agreement with the experimental.
对于由强非线性杂质和线性基质组成的两组分复合材料，利用倒易定理得到有效电导率的近似公式.计算的结果与实验结果符合较好。 - The prediction formula of yearly production and the approximation formula for reduction between the instantaneous production and yearly production are also presented.
给出了年产量预测公式及瞬时产量与年产量相互换算的近似公式。 - Both continuous paraxial approximation formula and two order discrete paraxial approximation formula are developed for one way wave motion transmitting apparently along normal direction based on kinematics model and local polynomial interpolation function.
基于单向波动法向透射的一般运动学模型和局部多项式插值函数，推导建立了连续形和2阶离散形法向透射傍轴近似公式。 - The non-linearity of the water turbine can be taken into consideration during the modeling, so the calculation results obtained are more accurate compared with approximation formula.
在建立模型时可以考虑水轮机特性的非线性因素，从而使计算结果要比近似计算公式更接近实测结果。 - Approximation Formula and Application of SF_6 Saturated Steam Pressure Curve
一种SF6气体饱和蒸汽压曲线的拟合公式及其应用 - AVA inversion methods for lithology parameters mostly are based on the approximation formula of the isotropic theory, and only P-P wave data is used.
AVA岩性参数反演方法大都是基于各向同性理论的近似公式利用P-P波单分量资料来反演。 - The Application of the Row Pitch Approximation Formula during the Machining of Curved Surface
曲面加工时行距近似公式的应用 - In this paper, a approximation formula of SF6 saturated steam pressure curve is proposed, and the accuracy of the formula is verified by comparing with the standard curve.
提出了一种新的SF6气体饱和蒸汽压曲线的拟合公式，并和标准曲线数据加以比较，确认了其准确性； - An approximation formula for the estimation of variance threshold is derived and shown quite close to simulation for data length larger than 24.
给出了估计其估计方差输入信噪比阈值的近似公式，该公式得出的阈值与样本长度大于24的模拟结果相当接近。 - Reckoning of Erfc(λ) and Ierfc(λ) Approximation Formula in Non-Stable Groundwater Flows and Their Application in Tarim River Watershed
塔里木河生态环境演变及整治途径地下水非稳定流中erfc（λ）、ierfc（λ）逼近公式的推求及其应用 - The successful applications to resonance elastic light scattering and resonance Raman scattering by atoms lead to a universal approximation formula of atomic energy& levels of atoms and atomic ions formed by gradual ionization of valence electrons of their atoms.
对原子的弹性光散射和Raman散射的成功应用推出了原子和原子的价电子逐级电离所形成的离子的所有原子能级的普适近似公式。 - Based of BAW formula, we elicit a new approximation formula.
本文就在BAW公式的基础上，修正了BAW公式，利用微分方程的解法，得出新的近似解析解的计算公式。 - On the basis of the P-S wave reflection coefficient equation given by Aki& Richards for weak contrast media, a new approximation formula for the small incident angle is presented.
从Aki和Richards在弱反差条件下给出的PS波反射系数近似公式出发，提出了一种在小角度入射范围内的PS波反射系数近似公式。 - Problems of Number Theory in Approximation Formula on the Divergence Angles of Plants
植物发散角近似公式中的数论问题 - Study on the Conditions of Applying the Approximation Formula for H+ Calculation on Two Mixed Monoprotic Weak Acids
混合弱酸溶液〔H~+〕近似计算式使用条件的研究 - Considering bounded-stationary perturbation theory, we arrive at the second order approximation formula in degeneracy with its application.
本文应用束缚定态微扰论推导出在简并情况下二级近似公式，并说明其应用。 - For the seismic data with large incidence angles, there are large differences between the computation results from AVA isotropic approximation formula and that from AVA anisotropic precise formula.
对于大角度入射的地震资料，基于各向同性理论的AVA近似公式与基于各向异性理论的AVA精确公式的计算结果存在较大差异。 - By analysing the compute result of the quadratic approximation formula, we educe the conclusion that 3 is the best rank code for the quadratic approximation formula.
通过对最小二乘拟合公式实际计算结果的分析，得出了“拟合公式阶数取3为最佳”的结论。 - The solution of approximation formula is obtained by simple layer potential method.
并用单层位势方法得到该问题解的近似表达式。