numaxiom 0.0.2

Lightweight numeric marker traits for ranges/signs plus constants and ops; std by default, no_std optional.
Documentation 
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/// Provides a multiplicative inverse operation for numeric types.
pub trait Reciprocal: Sized {
    /// Returns the multiplicative inverse of `self`.
    ///
    /// Implementations should document how they behave for zero (panic, `None`,
    /// infinity, etc.).
    fn reciprocal(self) -> Self;
}

macro_rules! impl_reciprocal_for_float {
    ($($ty:ty),+ $(,)?) => {
        $(impl Reciprocal for $ty {
            fn reciprocal(self) -> Self {
                1.0 as $ty / self
            }
        })+
    };
}

impl_reciprocal_for_float!(f32, f64);