Function isotropic_intensity 

pub fn isotropic_intensity(power: f64, distance: f64) -> Option<f64>

Computes isotropic intensity from power and distance with I = P / (4 * pi * r^2).

Examples

use use_radiation::isotropic_intensity;

let Some(value) = isotropic_intensity(4.0 * core::f64::consts::PI, 1.0) else {
    panic!("expected isotropic intensity");
};

assert!((value - 1.0).abs() < 1.0e-12);