TSI2FunctionFn#

A prototype of a TS implicit function evaluation function for 2nd order systems that would be passed to TSSetI2Function()

Synopsis#

#include <petscts.h> 
PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSI2FunctionFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec U_tt, Vec F, void *ctx);

Calling Sequence#

  • ts - the TS context obtained from TSCreate()

  • 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#

The deprecated TSI2Function still works as a replacement for TSI2FunctionFn *.

See Also#

TS: Scalable ODE and DAE Solvers, TS, TSSetI2Function(), DMTSSetI2Function(), TSIFunctionFn

Level#

advanced

Location#

include/petscts.h

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