  ***   at top-level: do(-1)
  ***                 ^------
  ***   in function do: my(x=lambertw(y));exp(x)*
  ***                        ^--------------------
  *** lambertw: domain error in Lw: y < 0
  ***   at top-level: do(I)
  ***                 ^-----
  ***   in function do: my(x=lambertw(y));exp(x)*
  ***                        ^--------------------
  *** lambertw: sorry, lambert(t_COMPLEX) is not yet implemented.
1.0000000000000000000000000000000000000
0.99999999999999999999999999999999999999999999999999999999999999999999999999
9999999999999999999999999999999999999999999999999999999999999999999999999999
9999999999999999999999999999999999999999999999999999999999999
x - 2*x^2 + 8*x^3 - 52*x^4 + O(x^5)
  ***   at top-level: lambertw(1/x)
  ***                 ^-------------
  *** lambertw: domain error in lambertw: valuation < 0
Total time spent: 7
