use-electromagnetism 0.0.1

Scalar combined electric and magnetic field helpers for RustUse
Documentation 
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use use_electromagnetism::{
    ElectromagneticField, cyclotron_radius, lorentz_force_scalar, velocity_selector_speed,
};

fn main() -> Result<(), &'static str> {
    let field = ElectromagneticField::new(10.0, 2.0).ok_or("invalid field values")?;
    let selector_speed = velocity_selector_speed(20.0, 4.0).ok_or("invalid selector inputs")?;
    let lorentz_force = lorentz_force_scalar(1.0, 10.0, 2.0, 3.0, core::f64::consts::FRAC_PI_2)
        .ok_or("invalid Lorentz-force inputs")?;
    let radius = cyclotron_radius(2.0, 10.0, 1.0, 5.0).ok_or("invalid cyclotron inputs")?;

    assert!((selector_speed - 5.0).abs() < 1.0e-12);
    assert!((lorentz_force - 16.0).abs() < 1.0e-12);
    assert!((radius - 4.0).abs() < 1.0e-12);
    assert!(field.energy_density().ok_or("invalid energy density")? > 0.0);

    Ok(())
}