petsc-3.8.4 2018-03-24

DMTSGetIFunction

get TS implicit residual evaluation function

#include "petscts.h" 
PetscErrorCode DMTSGetIFunction(DM dm,TSIFunction *func,void **ctx)

Not Collective

dm -DM to be used with TS

	func	- function evaluation function, see TSSetIFunction() for calling sequence
	ctx	- context for residual evaluation

TSGetFunction() is normally used, but it calls this function internally because the user context is actually associated with the DM.