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Second Order Coupled Differential Equations

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Stephon Henry-Rerrie
回答： Torsten 2017-1-27
Is it possible to write code to model this type of differential equation? :
x'' = f(y, y', y'')
y'' = g(x, x', x'')
Thanks!
  2 个评论
Stephon Henry-Rerrie
Stephon Henry-Rerrie 2017-1-26
Are there any methods in MATLAB that I can employ? Thanks!
Steven Lord
Steven Lord 2017-1-26
Yes, MATLAB has several different functions for solving ODEs. The video and documentation page I linked in my answer describe how to use some of them, and the page I linked in this comment includes another example and offers some guidance about which solver to use for particular types of problems.

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回答（2 个）

Steven Lord
Steven Lord 2017-1-26
See this video and/or this documentation page for examples of how to solve systems of ODEs.
Torsten
Torsten 2017-1-27
Can you solve for x'' and y'' , i.e.
x''=function1(x,x',y,y') y''=function2(x,x',y,y')
?
If yes, you can use any ODE solver from the ODE-suite you like.
If not, try ODE15i.
Best wishes
Torsten.

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