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finite difference approximation中文什么意思

發(fā)音:   用"finite difference approximation"造句
  • 有限差分逼近值
  • 有限差分近似
  • finite:    adj. 有限的；【語法】限定的；【數(shù)學(xué)】有窮的，有盡的 ...
  • difference:    n. 1.差異，差別。 2.不和，爭論。 3.【數(shù)學(xué)】差 ...
  • approximation:    n. 1.接近；近似。 2.【數(shù)學(xué)】近似值。 3.概算， ...
  • finite-difference approximation:    有限差分近似式; 有限差近似
  • difference approximation:    差分近似法
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例句與用法

  1. A stable finite difference approximation for vibration equation of beams
    梁振動(dòng)方程的一個(gè)穩(wěn)定的有限差分近似
  2. ( 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(duì)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(shí)給出數(shù)值算例，并且對(duì)非理想化條件下模型的特征差分方法進(jìn)行了討論。
  3. 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(dòng)微分是一種新的能精確而有效地計(jì)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(hào)微分和差分方法的計(jì)算成本低，又比差分方法計(jì)算精確，自動(dòng)微分在近幾年發(fā)展迅速，應(yīng)用廣泛。

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