smartcore 0.5.0

Machine Learning in Rust.
Documentation 
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/// first order optimization algorithms
pub mod first_order;
/// line search algorithms
pub mod line_search;

/// Function f(x) = y
pub type F<'a, T, X> = dyn for<'b> Fn(&'b X) -> T + 'a;
/// Function df(x)
pub type DF<'a, X> = dyn for<'b> Fn(&'b mut X, &'b X) + 'a;

/// Function order
#[allow(clippy::upper_case_acronyms)]
#[derive(Debug, PartialEq, Eq)]
pub enum FunctionOrder {
    /// Second order
    SECOND,
    /// Third order
    THIRD,
}