use qtty::{Meter, Radian, Second};
fn main() {
let half: f64 = Meter::new(1.0) / Meter::new(2.0);
assert!((half - 0.5).abs() < 1e-12);
let ratio: f64 = Second::new(1.0) / Second::new(1.0);
let angle: Radian = Radian::new(ratio.asin());
assert!((angle.value() - core::f64::consts::FRAC_PI_2).abs() < 1e-12);
}