I’m making a toy numerical crate, and some of my return types are complex numbers. I’m relying on num-complex under the hood, but my return types are also complex numbers. I considered simply returning tuples of f64 values, but that doesn’t feel right.

If you were using a crate, how would you want to see this done? I hate to force anyone to include a dependency they don’t want—even one as well-maintained as num-complex. Is it alright to pub use the complex type, or is there a more acceptable way?

Thanks for your time!

pub use num_complex::Complex64;
// and return a Complex64 value...

or

use num_complex::Complex64;
// and return a tuple of `f64`?