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# DMDATSIFunctionLocalFn

A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetIFunctionLocal()`

## Synopsis

    #include <petscts.h>
    PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSIFunctionLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *xdot, void *imode, void *ctx);

## Calling Sequence

- info - defines the subdomain to evaluate the residual on

- t - time at which to evaluate residual

- x - array of local state information

- xdot - array of local time derivative information

- imode - output array of local function evaluation information

- ctx - optional context

## Note

The deprecated `DMDATSIFunctionLocal` still works as a replacement for `DMDATSIFunctionLocalFn` *.

## See Also

`DMDA`, `DMDATSSetIFunctionLocal()`, `DMDATSIJacobianLocalFn`, `TSIFunctionFn`

## Level

beginner

## Location

include/petscts.h

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