difference approximation造句
例句與造句
- Alternating direction explicit difference approximation
交替方向顯示差分近似法 - A stable finite difference approximation for vibration equation of beams
梁振動方程的一個穩(wěn)定的有限差分近似 - Backward difference approximation
后向差分近似法 - Uniform second - order pointwise convergence of a hybrid difference approximation for a singularly perturbed robin problem
基于非均勻網(wǎng)格求解非線性對流擴散問題的一種高精度差分格式 - This is helpful for us to construct difference approximation schemes for hj equation with aids of schemes for conservation laws . in this paper we present a class gauss schemes with staggered grids for hj equation , based on gauss schemes with staggered grids for conservation laws
本文，我們將hamilton - jacobi方程變化為雙曲守恒律方程，利用求解雙曲守恒律方程的交錯網(wǎng)格的gauss型差分格式，構(gòu)造了一類求解hamilton - jacobi方程的交錯網(wǎng)格的gauss型差分格式。 - It's difficult to find difference approximation in a sentence. 用difference approximation造句挺難的
- The novel three - dimensional finite - difference approximations of mur ' s absorbing boundary conditions are also presented in frequency - domain . then the ddm based on fdfd is investigated in the applications of three - dimensional electromagnetics problems . and it is used to analyze the leaky wave antenna based on image nonradiative dielectric ( nrd ) guide
最后，闡述了maxwell方程組和劃分區(qū)域的despres傳輸條件的頻域差分格式建立，在截斷邊界上構(gòu)造了三維頻域mur條件的差分近似，探討了基于頻域有限差分的區(qū)域分解法在三維電磁問題中的應(yīng)用實現(xiàn)，并將該算法用于分析一種基于nrd波導(dǎo)結(jié)構(gòu)的漏波天線。 - ( 5 ) discuss some mathematical models of the pollutant transport problems in some local river flow fields . by integral transform method , the paper establishes the usual finite difference approximation scheme to solve the numerical solutions and gives examples for the computation of the approximating solutions , moreover , discusses one - dimensional characteristic finite difference method for a convection - diffusion equation under usual conditions
( 5 )針對水域中污染物輸移問題的數(shù)學(xué)模型，通過積分變換法，得到了簡化模型在理想化條件下的近似精確解，同時給出數(shù)值算例，并且對非理想化條件下模型的特征差分方法進行了討論。 - It is proposed on the basis of the analysis on newton method and the preconditioned conjugate gradient method ( pcg method ) . numerical derivatives can be evaluated by symbolic differ - entiation ( sd ) , finite difference approximation and automatic differelltiation ( ad ) . ad has significant advantages over other two approaches
自動微分是一種新的能精確而有效地計算導(dǎo)數(shù)的方法，它優(yōu)越于傳統(tǒng)的微分方法，例如它比符號微分和差分方法的計算成本低，又比差分方法計算精確，自動微分在近幾年發(fā)展迅速，應(yīng)用廣泛。