
Worked on stabilizing core numerical routines in the gdsfactory/gdsfactory repository, focusing on enhancing the reliability and performance of path calculations and Fresnel coefficient caching. Applied Python and numerical analysis skills to implement a stable Euler path calculation using sinc-based formulas for small or zero angles, reducing the risk of NaN values and improving memory control. Introduced immutability safeguards for cached Fresnel coefficients to ensure deterministic results and prevent accidental mutations. Additionally, removed legacy benchmarking code in favor of a more robust implementation, resulting in faster repeated evaluations and a cleaner codebase that supports large-scale simulation and design workflows.
January 2026: Stabilized core numerical routines in gdsfactory/gdsfactory to enhance reliability and performance of path calculations and Fresnel caching. Delivered three integrated changes: stable Euler path with sinc-based formulas and caching, immutability safeguard for cached Fresnel coefficients, and removal of legacy benchmarking code in favor of a more stable implementation. Result: reduced NaN risk, controlled memory usage, faster repeated evaluations, and cleaner codebase, strengthening design workflows and large-scale simulations.
January 2026: Stabilized core numerical routines in gdsfactory/gdsfactory to enhance reliability and performance of path calculations and Fresnel caching. Delivered three integrated changes: stable Euler path with sinc-based formulas and caching, immutability safeguard for cached Fresnel coefficients, and removal of legacy benchmarking code in favor of a more stable implementation. Result: reduced NaN risk, controlled memory usage, faster repeated evaluations, and cleaner codebase, strengthening design workflows and large-scale simulations.

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