## SymbolicSum2

`SymbolicSum2` is similar to `SymbolicSum` (`SymbolicSum` was a Mathematica function to do symbolic summation. It was obsolete from version 3 - all functionality is now autoloaded by Sum), but extended to several double sums.

### See also

[Overview](Extra/FeynCalc.md), [SymbolicSum3](SymbolicSum3.md).

### Examples