TSComputeI2Function#

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

Synopsis#

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

Collective

Input Parameters#

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

Output Parameter#

F - the residual vector

Note#

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

See Also#

TS: Scalable ODE and DAE Solvers, TS, TSSetI2Function(), TSGetI2Function()

Level#

developer

Location#

src/ts/interface/ts.c

Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages