petsc-3.7.1 2016-05-15

TSComputeI2Function

Evaluates the DAE residual written in implicit form F(t,U,U_t,U_tt) = 0

#include "petscts.h"  
PetscErrorCode TSComputeI2Function(TS ts,PetscReal t,Vec U,Vec V,Vec A,Vec F)

Collective on TS and Vec Many br

	ts	- the TS context Many br
	t	- current time Many br
	U	- state vector Many br
	V	- time derivative of state vector (U_t) Many br
	A	- second time derivative of state vector (U_tt) Many br

F -the residual vector Many br

Most users should not need to explicitly call this routine, as it Many bris used internally within the nonlinear solvers. Many br

Many br

TS, compute, function, vector