## $BreitMaison

`$BreitMaison` is a legacy switch for the Breitenlohner-Maison-t'Hooft-Veltman scheme.

Use `FCSetDiracGammaScheme` to specify a scheme for handling Dirac matrices in dimensional regularization and `FCGetDiracGammaScheme` to check the current setting.

### See also

[Overview](Extra/FeynCalc.md), [FCSetDiracGammaScheme](FCSetDiracGammaScheme.md), [FCGetDiracGammaScheme](FCGetDiracGammaScheme.md).

### Examples