PETSc version 3.15.5
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 on TS
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
Note
Most users should not need to explicitly call this routine, as it
is used internally within the nonlinear solvers.
See Also
 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