During May 2025, Tam Nguyen enhanced the mphowardlab/essential-math repository by developing a new diffusion cell concept example aimed at improving educational content for diffusion-related topics. Tam authored detailed documentation in Markdown, presenting the mathematical formulation and solution for the diffusion cell, and supplemented the explanation with a custom image to aid user understanding. The update also included revised credits to acknowledge Arthur McPherson’s contributions. Focusing on technical writing and documentation, Tam’s work deepened the resource’s instructional value and streamlined onboarding for new users. No bugs were reported or fixed during this period, reflecting a targeted and well-executed feature addition.