Initial release. The analytic one, two and three compartment
linear solutions, their ‘stan’ gradients, the eigen decompositions
(solComp2(), solComp3()) and the
derived-parameter conversions behind rxode2::rxDerived()
moved here from ‘rxode2’, so ‘rxode2’ no longer compiles ‘stan’.
‘rxode2’ reaches the compiled kernels through an external-pointer table
and hands this package the struct offsets it needs, so neither package
shares struct layouts with the other.
The package neither links nor loads the TBB library: the ‘stan’ autodiff tapes are created per thread here, so ‘RcppParallel’ is needed only for its headers.
The closed-form solutions follow the idea of the ‘wnl’ package by Kyun-Seop Bae; the implementation here is different.