fn main() {
    let vector = vec![1.025_f64, 1.028, 1.03, 1.05, 1.051];

    let minimum =
        vector.windows(2)
            .map(|slice| (slice[0] - slice[1]).abs())
            .min_by(|x, y| x.partial_cmp(y).unwrap());

    println!("{:?}", minimum);
}