3-Axis Magnetometer Hard-Iron Offset & 3x3 Soft-Iron Ellipsoid Calibration Matrix Fitter

Deterministic Li-Griffiths algebraic conic ellipsoid fit + symmetric positive-definite Cholesky / Eigen-decomposition W^(-1) = V * D^(-1/2) * V^T mapping tilted ellipsoid to unit geomagnetic sphere engine (.csv, .txt, .c, .h) built for STMicroelectronics (LIS3MDL), Bosch Sensortec, PNI (RM3100), Honeywell — zero-upload ephemeral Wasm RAM execution.

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Cloudflare Ephemeral Wasm RAM · 0% Retention

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