graphics(
    line_abs_arg(sqrt(x), (x, -3, 3), label="f"),
    line_abs_arg(log(x), (x, -3, 3), label="g",
        rendering_kw={"linestyle": "-."}),
)
# Expected:
## Plot object containing:
## [0]: cartesian line: abs(sqrt(x)) for x over (-3.0, 3.0)
## [1]: cartesian line: arg(sqrt(x)) for x over (-3.0, 3.0)
## [2]: cartesian line: abs(log(x)) for x over (-3.0, 3.0)
## [3]: cartesian line: arg(log(x)) for x over (-3.0, 3.0)