Geometry Is Everywhere — From an Airplane to Relativity
From great-circle flight to covariant derivatives and classical fields: why a geometric object is not its coordinate components.
Read the articleNotes, models and occasional objections
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A personal site about physics, mathematics, computing, music and the occasional failure of cinematic logic.
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The Wonderful World of Mathematical Transformations
From generating functions and Z-transforms to eigenmodes, Fourier analysis, SVD, PCA and wavelets—and what compression must discard.
Read the articleRevisiting the First Blackboard Problem in Good Will Hunting
The four tasks in the film’s first blackboard problem, from adjacency matrices and walk counts to generating functions.
Read the articleInterstellar – The Real End
A short satirical alternate ending. Gravitation and starvation are real but I believe the latter feels more real.
View the comicInteractive mathematics
Data Analysis Playground
Explore signals, statistics, Fourier magnitude and phase, autocorrelation, reconstruction and Anscombe’s quartet—with an emphasis on what each result does and does not prove.
Start experimentingWork in progress
Current Research
Current investigations include guitar physics, scientific modelling, indoor airflow and numerical experiments. These projects and their repositories are private; selected results may be published here later when they are ready.