PETSc version 3.15.5
DMTSSetI2Function
set TS implicit function evaluation function for 2nd order systems 
Synopsis
#include "petscts.h" 
PetscErrorCode DMTSSetI2Function(DM dm,TSI2Function fun,void *ctx)
Not Collective
Input Arguments
|  | dm | - DM to be used with TS | 
|  | fun | - function evaluation routine | 
|  | ctx | - context for residual evaluation | 
Calling sequence of fun
    PetscErrorCode fun(TS ts,PetscReal t,Vec U,Vec U_t,Vec U_tt,Vec F,ctx);
|  | t | - time at step/stage being solved | 
|  | U | - state vector | 
|  | U_t | - time derivative of state vector | 
|  | U_tt | - second time derivative of state vector | 
|  | F | - function vector | 
|  | ctx | - [optional] user-defined context for matrix evaluation routine (may be NULL) | 
Note
TSSetI2Function() is normally used, but it calls this function internally because the user context is actually
associated with the DM.
See Also
 TSSetI2Function()
Level
advanced
Location
src/ts/utils/dmts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages