// This expression is complete nonsense but it contains every type of
// GiNaC object
- e = -42 * x * pow(y, sin(y*Catalan)) * dirac_one()
+ e = -42 * x * pow(y, sin(y*Catalan)) * dirac_ONE()
* epsilon_tensor(idx(fail(), 3), idx(0, 3), idx(y/2, 3))
+ lorentz_g(
varidx(lst(x, -11*y, acos(2*x).series(x==3-5*I, 3)) * color_ONE()