## Amputate

`Amputate[exp, q1, q2, ...]` amputates `Eps` and `DiracGamma`. `Amputate[exp,q1,q2,Pair->{p}]` amputates also `p.q1` and `p.q2`; `Pair->All` amputates all except `OPEDelta`.

### See also

[Overview](Extra/FeynCalc.md), [DiracGamma](DiracGamma.md), [GA](GA.md), [DiracSimplify](DiracSimplify.md), [GS](GS.md), [DiracTrick](DiracTrick.md).

### Examples

```mathematica
GS[p] . GS[q]
```

$$\left(\bar{\gamma }\cdot \overline{p}\right).\left(\bar{\gamma }\cdot \overline{q}\right)$$

```mathematica
Amputate[%, q]
```

$$q^{\text{\$AL\$16479}(1)} \left(\bar{\gamma }\cdot \overline{p}\right).\gamma ^{\text{\$AL\$16479}(1)}$$