分享常微分数值求解算法，显式4阶龙格-库塔算法。

Colbie

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" ]' a7 |- Q3 p7 p# r) Z1 w分享常微分数值求解算法，显式4阶龙格-库塔算法。
Fourth Order Runge-Kutta Method for Ordinary Differential
Equation using Matlab Basic Codes
Question: Use Runge-Kutta method for systems to solve the following
3 r+ P/ l& [7 w/ R0 ssystems and draw their state paths in the state space of (x,y):
+ v6 p0 O7 ^) r6 w(a) Solve with x(0)=4 and y(0)=1 over [0,8]
* r5 \" @) L* x1 S/ q; b; Ousing h=0.1.
4 e8 Q! j" O' N5 V4 a$ pSolution: Using the following program, we can apply fourth order
) T# U( F- g* H' }Runge-Kutta method for this problem.
) E' W. H+ ~" P5 k1 R- _  V' s: D3 a

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hope123

常微分数值求解算法，这个算法不错。

momone

看看楼主分享的库塔算法。