cantera cantera-1758

The task

**Observed symptoms** * `ct.Func1("sin", 2.34)` does not create a function object; only callable objects are accepted. * `ct.Func1.cxx_functor("cos")` constructs a function silently, without any deprecation warning. * `Func1("sin") / 2` yields a generic `"ratio"` type instead of a simplified scaled sine. * `a * 0`…