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DESIGN

Goals

Fast core with predictable performance (no runtime JIT)
Clean APIs for Python and Web
Extensibility: pluggable operators, fitness terms, search strategies

Key components

AST (ast.rs), evaluator (eval.rs), operators (ops.rs)
Fitness metrics (fitness.rs), GP algorithm (gp.rs)
Simplification (simplify/), utilities (utils.rs)

Error/Complexity tradeoff

Use bi-objective selection or scalarized cost; Pareto archive maintained per generation.

Safety

Protected operators for division/log; numeric guards where needed.

Determinism

Seeded RNG exposed in configs for reproducible runs.