## TODO list for Math::AnyNum
# Use `Rmpfr_q_div()` and `Rmpfr_z_div()` with Math::MPFR >= 3.36.
# Use `Rmpfr_z_sub()` when MPFR >= 3.1.0 is available.
# Add the following conversion methods:
as_rat [?]
in_base [?]
# Add the following comparison methods:
acmp
# Add the following functions (maybe):
max
min
sum
product