plot(x, log(x), exp(x), (x, -3, 3), aspect="equal", ylim=(-3, 3),
   rendering_kw=[{}, {"linestyle": "--"}, {"linestyle": ":"}])
# Expected:
## Plot object containing:
## [0]: cartesian line: x for x over (-3.0, 3.0)
## [1]: cartesian line: log(x) for x over (-3.0, 3.0)
## [2]: cartesian line: exp(x) for x over (-3.0, 3.0)