Lyapunov exponent with respect to a parameter

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ABHIJIT MAJUMDER 2017-8-30

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https://ww2.mathworks.cn/matlabcentral/answers/354606-lyapunov-exponent-with-respect-to-a-parameter

编辑： DGM 2023-11-1

I want to investigate the chaotic nature of Lorenz system when the parameter R varies. I am using the code which was previously posted on Mathworks. Now, for every R, I want to take the Lyapunov exponent at the end time. Then, I would like to store that R and Lyapunov exponent and plot them together. To get this kind of plot, I made some changes, but it gives some errors. Please help.

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Haneche 2023-10-31

移动：DGM 2023-11-1

Hi my brother, i try this three codes in my PC but an error appear , can you help me ?

DGM 2023-11-1

编辑：DGM 2023-11-1

You ran some "modified" code that was known to have some undescribed errors, and you got some undescribed errors.

FWIW, the unmodified files are here:

https://www.mathworks.com/matlabcentral/fileexchange/4628-calculation-lyapunov-exponents-for-ode

If you want to conduct the same modification that OP wanted, you'll have to figure out what OP wanted, because the changes that were made don't really make sense. R is not defined before it's used, so you'll have to figure out where and how it should be defined and possibly pass it between functions if and when necessary.

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