Trait DynamicOrder2Term 

pub trait DynamicOrder2Term {
    // Required methods
    fn outer_first(&self) -> f64;
    fn outer_second(&self) -> f64;
    fn inner_gradient(&self, axis: usize) -> f64;
    fn inner_hessian(&self, row: usize, column: usize) -> f64;
}

One inner scalar in a runtime-width additive order-two composition.

Implementors expose only the inner gradient and Hessian. The corresponding outer function’s first and second derivatives live beside the source in the caller’s term type, so several terms that share an inner scalar may be fused before entering DynamicOrder2Accumulator.

Required Methods

fn outer_first(&self) -> f64

Outer first derivative f'(q) for this already-fused source.

fn outer_second(&self) -> f64

Outer second derivative f''(q) for this already-fused source.

fn inner_gradient(&self, axis: usize) -> f64

Inner first derivative q_i.

fn inner_hessian(&self, row: usize, column: usize) -> f64

Inner second derivative q_ij.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors