fixed_math 0.4.1

Some math traits and functions for `fixed` point numbers.
Documentation 
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use fixed::types::*;
use fixed_math::{trig::*, util::rad_to_deg};

fn main() {
    //TODO more
    let v = vec![
        I32F32::MIN >> 1,
        I32F32::MAX >> 1,
        I32F32::MIN,
        I32F32::MAX,
        I32F32::from_num(270),
        I32F32::from_num(90),
        I32F32::from_num(45),
        I32F32::from_num(22.5),
        rad_to_deg(I32F32::FRAC_PI_2),
        rad_to_deg(I32F32::FRAC_PI_4),
        rad_to_deg(I32F32::FRAC_PI_8),
        I32F32::from_num((I32F32::MIN >> 8) * I32F32::from_num(180) / I32F32::PI),
    ];
    println!("I32F32 deg");
    for n in v {
        println!("sin_cos {} = {:?}", n, sin_cos(n));
    }

    let v = vec![
        I32F32::MIN >> 1,
        I32F32::MAX >> 1,
        I32F32::MIN,
        I32F32::MAX,
        I32F32::from_num(-15),
        I32F32::from_num(-25),
        I32F32::from_num(-45),
        I32F32::from_num(15),
        I32F32::from_num(25),
        I32F32::from_num(45),
        I32F32::from_num(90),
        I32F32::from_num(270),
        I32F32::from_num((I32F32::MIN >> 8) * I32F32::from_num(180) / I32F32::PI),
    ];
    for n in v {
        println!("tan {} = {:?}", n, tan(n));
    }

    // let v = vec![
    //     //TODO fix atan
    //     I32F32::from_num(-0.4663076578),
    //     I32F32::from_num(0.466307657),
    //     I32F32::from_num(-0.9999999993),
    //     I32F32::from_num(0.9999999981),
    // ];
    // for n in v {
    //     println!("atan {} = {:?}", n, atan_deg_unchecked(n));
    // }
}