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Unfortunately the Numerical Recipies book is known for being pretty horrible in general for ODEs. For chaotic systems at high tolerances, you likely want to be using Vern9 which is a highly efficient 9th order RK solver.


Is there a reference for ODEs that you like?


Hairer and Wanner (Solving Ordinary Differential Equations) is the classic if you want a graduate level understanding of the mathematical details of all the different methods, but it is incredibly dense (thorough understanding of both volumes will take months to years). If you want a more approachable reference, I would recommend https://book.sciml.ai/ (specifically chapters 7-9) which skips over most of the detail on how to construct ODE solvers but covers quite well the methods that tend to be used in practice.


Many thanks.




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