Objects in C++

Object	Example	Description
Symbol	Symbol("s")	a real variable s.
Index	Index("mu",Type::VD)	a Lorentz index mu with dimension d.
	Index("mu",Type::CA)	a color index a with dimension NA.
	Index("mu",Type::CF)	a color index i with dimension NF.
Vector	Vector("p")	a vector/momentum p.
Pair	Pair(mu,nu)	a Kronecker delta ${\delta }_{\mu \nu }$ with Index mu and nu.
	Pair(p,mu)	a Vector p with Lorentz Index mu, $p^{\mu }$, p.mu.
	Pair(p,q)	a scalar product $p\cdot q$ between Vector p and q.
SUNT	SUNT(a,i,j)	a T-matrix element $T_{ij}^a$ for SU(N) group.
	SUNT(lst{a,b,c},i,j)	a matrix element of a product of T, $(T^a{T}^b{T}^c{)}_{ij}$.
SUNF	SUNF(a,b,c)	a structure constant $f^{abc}$ of SU(N) group.
SUNF4	SUNF4(a,b,c,d)	a contract of two SUNF, $f^{abe}{f}^{ecd}$.
Eps	Eps(mu1,mu2,mu3,mu4)	a Levi-Civita tensor ${\epsilon }_{{\mu }_1{\mu }_2{\mu }_3{\mu }_4}$.
	Eps(p1,p2,mu1,mu2)	a partially contracted Levi-Civita tensor ${\epsilon }_{p_1{p}_2{\mu }_1{\mu }_2}$.
	Eps(p1,p2,p3,p4)	a fully contracted Levi-Civita tensor ${\epsilon }_{p_1{p}_2{p}_3{p}_4}$.
DGamma	DGamma(mu,l)	a Dirac-$\gamma$ matrix ${\gamma }_{\mu }$ for a fermion line l.
	DGamma(p,l)	a Dirac slash $p/=p^{\mu }{\gamma }_{\nu }$ for a fermion line l.
	DGamma(1/5/6/7,l)	a unit matrix, ${\gamma }_5$, ${\gamma }_6$, ${\gamma }_7$ for a fermion line l.
SP	SP(mu,nu)	evaluated to ${\delta }_{\mu \nu }$.
	SP(p+s*q,mu)	evaluated to $p^{\mu }+s{q}^{\mu }$.
	SP(2*p+q,p+s*q)	evaluated to $2p^2+(2s+1)p\cdot q+s{q}^2$.
GAS	GAS(mu)	evaluated to ${\gamma }_{\mu }$.
	GAS(3*p+s*q)	evaluated to $3p/+sq/$.
	GAS(1/5/6/7)	evaluated to a unit matrix, ${\gamma }_5$, ${\gamma }_6$, ${\gamma }_7$, respectively.
LC	LC(p,mu,p+s*q,k)	evaluated to $s{\epsilon }_{kph\mu }$.
TR	TR(expr)	a wrapper for the Dirac trace of expression expr.
TTR	TTR(lst{a,b,c,d})	a wraaper for the SU(N) trace of $T^a{T}^b{T}^c{T}^d$.
form	form(expr)	evaluate the expression expr using FORM program.