Crate wolfe_bfgs 

Thin BFGS-only re-export crate layered on top of opt.

Modules

constants

Shared constants for generic backtracking and ridge-escalation policies.

Structs

AcceptedStep

A trial accepted by backtracking_line_search.

BacktrackConfig

Geometric backtracking schedule.

Bfgs

A configurable BFGS solver.

Bounds

FiniteDiffGradient

FirstOrderSample

FusedObjective

Adapts an objective that naturally computes value and gradient together to the split ZerothOrderObjective / FirstOrderObjective interface used by the solvers.

MaxIterations

Problem

RidgeExhausted

Exhausted result from escalate_ridge.

RidgeSchedule

Geometric ridge / Levenberg-Marquardt escalation schedule.

RidgeSuccess

Successful result from escalate_ridge.

Solution

A summary of a successful solver run.

Tolerance

Enums

BfgsError

An error type for clear diagnostics.

BoundsError

ConfigError

LineSearchFailureReason

ObjectiveEvalError

Profile

Traits

FirstOrderObjective

ZerothOrderObjective

Functions

armijo_roundoff_cushion

Round-off cushion added to an Armijo sufficient-decrease threshold.

backtracking_line_search

Evaluate geometrically contracted trial steps until one is accepted.

escalate_ridge

Try an operation over a geometric sequence of ridge values.

optimize