Function fuzzycomp::eq

pub fn eq<T>(lh: T, rh: T, margin: T) -> bool where
    T: PartialOrd + Add<Output = T> + Sub<Output = T> + Copy, 

Equal within margin (equal enough)

Compares two f64 with a given margin. Returns true if they are equal enough.

if(fuzzycomp::eq(std::f64::consts::PI, 3.0, 0.2)) {
    println!("Precision engineering!");
}