two_way_engine

Read the equation

This relation defines D <- target vector (size must be >= cfg.dim; extra values ignored) in the source section “two_way_engine”. It specifies the displayed relationship between the named quantities or parameters. Its interpretation depends on the source’s stated variables and conditions; this record does not assign an unprovided physical or cognitive meaning to them.

Terms & definitions

The recovered passage does not supply a separate symbol table. Read the source context for the notation used in this version; familiar letters may carry different meanings in other builds.

How it works

1. Read D <- target vector (size must be >= cfg.dim; extra values ignored) as the quantity being defined or updated by this relation.

2. Substitute the source-defined variables or recorded values and follow the displayed arithmetic and indexing exactly.

3. Use this version’s variable definitions and update order. The same symbol may be assigned a different meaning in another build.

Assumptions & limits

• This source expression was recovered from the pinned code revision. Its presence does not establish that the associated program was built, run, or scientifically validated.

Original context

    double epsilon = 1e-6;
    bool use_gpu = false;
  };

  TwoWayEngine();                      // uses default Cfg()
  explicit TwoWayEngine(const Cfg& cfg);

  // D <- target vector (size must be >= cfg.dim; extra values ignored)
  void set_target(std::span<const float> target);

  // B(S): current behavior snapshot (computed on demand)
  std::vector<float> behavior() const;

  // RMSE in [0, +inf) (practically clamped by sigmoid to [0, 1])
  double error() const { return current_error_; }

  // Run one optimization tick (alternating + joint update proxy)
  void step();

D <- target vector (size must be >= cfg.dim; extra values ignored)

Related builds