the project
About
Delta by Delta (Δ/Δ) is a one-person math education project run by a simulation engineer. It lives in two places: this site, and YouTube.
On YouTube, Δ/Δ publishes animated derivations of the math behind simulation: computational fluid dynamics, linear algebra, and machine learning. Each video takes one concept and works through it step by step, intuition first, with nothing skipped.
This site hosts the printable side of the project: practice worksheets, formatted as print-ready PDFs with the answer key on the last page.
Everything is built in Python: the videos are animated with Manim, the worksheets are typeset from source, and this site is generated by a small Python script with no frameworks.