varidx(lst(x, -11*y, acos(2*x).series(x==3-5*I, 3)) * color_ONE()
* metric_tensor(spinidx(0, 5, false, true), varidx(2, 4)), zeta(3)),
varidx(diag_matrix(lst(-1, Euler, atan(x/y==-15*I/17)))
varidx(lst(x, -11*y, acos(2*x).series(x==3-5*I, 3)) * color_ONE()
* metric_tensor(spinidx(0, 5, false, true), varidx(2, 4)), zeta(3)),
varidx(diag_matrix(lst(-1, Euler, atan(x/y==-15*I/17)))