V2EX finite difference method

Finite Difference Method

释义 Definition

有限差分法:一种数值计算方法,用有限个离散点上的函数值来近似导数,从而把微分方程(常见为偏微分方程)转化为可计算的代数方程或差分方程,用于近似求解。

发音 Pronunciation (IPA)

/fanat dfrns mθd/

例句 Examples

Finite difference methods approximate derivatives using values on a grid.
有限差分法通过网格上的函数值来近似导数。

Using the finite difference method, we discretized the heat equation in time and space to simulate temperature changes in the rod.
使用有限差分法,我们对热传导方程的时间与空间进行离散化,从而模拟杆内温度的变化。

词源 Etymology

该短语由三部分组成:finite(“有限的”)强调用有限步长/有限个点来近似;difference(“差”)指用相邻点的差值表示变化率;method(“方法”)表明这是系统性的计算方案。整体意义就是“用有限差来近似微分”的方法。需要注意,它还常与“finite difference scheme(差分格式)”“finite difference approximation(差分近似)”等搭配出现。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Finite Difference Methods for Ordinary and Partial Differential Equations(Randall J. LeVeque)
  • Numerical Recipes: The Art of Scientific Computing(Press 等)
  • Computational Fluid Dynamics: The Basics with Applications(John D. Anderson)
  • Numerical Solution of Partial Differential Equations: An Introduction(Morton & Mayers)
  • Introduction to Numerical Analysis(Stoer & Bulirsch)
关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     2874 人在线   最高记录 6679       Select Language
创意工作者们的社区
World is powered by solitude
VERSION: 3.9.8.5 13ms UTC 1:38 PVG 19:38 LAX 04:38 JFK 07:38
Do have faith in what you're doing.
ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86