SP

Description

SP[a, b] denotes a four-dimensional scalar product. SP[a, b] is transformed into ScalarProduct[a, b] by FeynCalcInternal. SP[p] is the same as SP[p, p] (=(p^2)).

See also:  Calc, ExpandScalarProduct, ScalarProduct.

Examples

SP[p, q]  +  SP[q]

SP[p - q, q + 2  p]

Calc[ SP[p - q, q + 2  p] ]

ExpandScalarProduct[SP[p - q]]

SP[a, b] // StandardForm

SP[a, b] // FCI // StandardForm

SP[a, b] // FCI // FCE // StandardForm