Sailboat .POL Polar VMG Upwind/Downwind Tack & Gybe Angle Optimizer

Deterministic 2D Bicubic spline VPP polar interpolation + cosine projection VMG = BSP(TWS, TWA)*cos(TWA) global extremum solver engine (.pol, .csv, .txt, .json) built for ORC VPP, Expedition Marine, OpenCPN, B&G — zero-upload ephemeral Wasm RAM execution.

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