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# FN_COMBINE_ADD

In functions of type `FNCOMBINE`, add the two child functions together.

## See Also

FN: Mathematical Functions, `FNCombineType`, `FNCombineSetChildren()`, `FN_COMBINE_MULTIPLY`, `FN_COMBINE_DIVIDE`, `FN_COMBINE_COMPOSE`

## Level

intermediate

## Location

include/slepcfn.h

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