![[Graphics:Images/index_gr_1.gif]](Images/index_gr_1.gif){kind=small}
Trick[exp] performs several basic simplifications without expansion. Trick[exp] uses Contract, DotSimplify and SUNDeltaContract.
See also: Calc, Contract, DiracTrick, DotSimplify, DiracTrick.
This calculates ![[Graphics:Images/index_gr_2.gif]](Images/index_gr_2.gif){kind=small}
and ![[Graphics:Images/index_gr_3.gif]](Images/index_gr_3.gif){kind=small}
in D dimensions.
![[Graphics:Images/index_gr_4.gif]](Images/index_gr_4.gif)
![[Graphics:Images/index_gr_5.gif]](Images/index_gr_5.gif){kind=small}
![[Graphics:Images/index_gr_6.gif]](Images/index_gr_6.gif)
![[Graphics:Images/index_gr_7.gif]](Images/index_gr_7.gif){kind=small}
![[Graphics:Images/index_gr_8.gif]](Images/index_gr_8.gif)
![[Graphics:Images/index_gr_9.gif]](Images/index_gr_9.gif){kind=small}
![[Graphics:Images/index_gr_10.gif]](Images/index_gr_10.gif)
![[Graphics:Images/index_gr_11.gif]](Images/index_gr_11.gif){kind=small}
![[Graphics:Images/index_gr_12.gif]](Images/index_gr_12.gif)
| The FeynCalc Book |  Tr |  TrickMandelstam |
![[Graphics:Images/index_gr_13.gif]](Images/index_gr_13.gif){kind=small}