petsc-3.6.2 2015-10-02
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# TSInterpolate

Interpolate the solution computed during the previous step to an arbitrary location in the interval

### Synopsis

    #include "petscts.h"
    PetscErrorCode TSInterpolate(TS ts,PetscReal t,Vec U)

Collective on TS

### Input Argument

| ts | - time stepping context
| t | - time to interpolate to

### Output Argument

U -state at given time

### Notes

The user should call TSSetRetainStages() before taking a step in which interpolation will be requested.

### Developer Notes

TSInterpolate() and the storing of previous steps/stages should be generalized to support delay differential equations and continuous adjoints.

### Keywords

TS, set

### See Also

TSSetRetainStages(), TSSetPostStep()

Level:intermediate
Location: src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages

### Examples

src/ts/examples/tutorials/ex16.c.html
src/ts/examples/tutorials/ex19.c.html
src/ts/examples/tutorials/ex20.c.html
src/ts/examples/tutorials/ex20adj.c.html
src/ts/examples/tutorials/ex20opt_p.c.html
src/ts/examples/tutorials/ex20opt_ic.c.html