## InitialSubstitutions

`InitialSubstitutions` is an option for `OneLoop` and `OneLoopSum` and `Write2`. All substitutions indicated hereby are done at the end of the calculation.

### See also

[Overview](Extra/FeynCalc.md), [OneLoop](OneLoop.md), [OneLoopSum](OneLoopSum.md), [Write2](Write2.md).

### Examples