[R-sig-dyn-mod] Hybrid simulation of nonlinear ode and discrete state machine

[Thomas Petzoldt]

Thanks for clarification. The transformation of a second order 
derivative is briefly shown here:

https://journal.r-project.org/archive/2010-2/RJournal_2010-2_Soetaert~et~al.pdf#3

and some more may be found in the book of Soetaert, Cash and Mazzia:

http://www.springer.com/cn/book/9783642280696


Thomas