TSSetRHSFunction#
Sets the routine for evaluating the function, where U_t = G(t,u).
Synopsis#
#include "petscts.h"
PetscErrorCode TSSetRHSFunction(TS ts, Vec r, PetscErrorCode (*f)(TS, PetscReal, Vec, Vec, void *), void *ctx)
Logically Collective on TS
Input Parameters#
ts - the TS context obtained from TSCreate()
r - vector to put the computed right hand side (or NULL to have it created)
f - routine for evaluating the right-hand-side function
ctx - [optional] user-defined context for private data for the function evaluation routine (may be NULL)
Calling sequence of f#
PetscErrorCode f(TS ts,PetscReal t,Vec u,Vec F,void *ctx);
ts - timestep context
t - current timestep
u - input vector
F - function vector
ctx - [optional] user-defined function context
Notes#
You must call this function or TSSetIFunction() to define your ODE. You cannot use this function when solving a DAE.
See Also#
Level#
beginner
Location#
Examples#
src/ts/tutorials/ex1.c.html
src/ts/tutorials/ex12.c.html
src/ts/tutorials/ex13.c.html
src/ts/tutorials/ex16.c.html
src/ts/tutorials/ex16fwd.c.html
src/ts/tutorials/ex1f.F90.html
src/ts/tutorials/ex2.c.html
src/ts/tutorials/ex20.c.html
src/ts/tutorials/ex20adj.c.html
src/ts/tutorials/ex20opt_ic.c.html
src/ts/tutorials/ex20opt_p.c.html
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages