This is a library for various numeric systems, including ancient, modern, and just plain strange.

Although the Roman module is likely to be the most popular, I maintain an interest in the others, so they’re all packaged as one!

This library works with Cargo. Add the following to your Cargo.toml dependencies section:

[dependencies]
numerals = "0.1"

The earliest version of Rust that this crate is tested against is Rust v1.31.0.

To format a number as Roman numerals, use Roman::from to convert it, and the UpperHex formatting trait to format it.

use numerals::roman::Roman;

let string = format!("{:X}", Roman::from(134));
assert_eq!(string, "CXXXIV");