# TSDefaultSystemMatrixBC

The default boundary condition function which does nothing.

### Synopsis

    #include "petscts.h"
    PetscErrorCode PETSCTS_DLLEXPORT TSDefaultSystemMatrixBC(TS ts, Mat A, Mat B, void *ctx)

Collective on TS

### Input Parameters

| ts | - The TS context obtained from TSCreate()
| A | - The system matrix
| B | - The preconditioner
| ctx | - The user-context

### Keywords

TS, System matrix, boundary conditions

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