1const PROTON: f64 = 1.00727646677;
2
3#[inline]
4pub fn mass_charge_ratio(mass: f64, z: i32) -> f64 {
5 (mass + z as f64 * PROTON) / (z.abs() as f64)
6}
7
8#[inline]
9pub fn neutral_mass(mz: f64, z: i32) -> f64 {
10 (mz * z.abs() as f64) - z as f64 * PROTON
11}