Trick

Description

Trick[exp] performs several basic simplifications without expansion. Trick[exp] uses Contract, DotSimplify and SUNDeltaContract.

See also:  Calc, Contract, DiracTrick, DotSimplify, DiracTrick.

Examples

This calculates (g^(μ ν)) (Subscript[γ, μ])and (Subscript[g, ν]^ν) in D dimensions.

Trick[{GA[μ] MT[μ, ν],  MTD[ν, ν]}]

FV[p + r, μ] MT[μ, ν] FV[q - p, ν]

Trick[%]

Trick[c . b . a  .  GA[d] . GA[e]]

% // FCE // StandardForm