Essays & explanations
Articles
Mathematical stories developed through examples, visuals, computation and proof.
7 September 2026·12 min
UndergraduateReflection
Beginning with a chord-and-tangent proof for log x, we move the starting point and uncover a nested family of bounds for the normalized factorial.
Stirling’s formulaAsymptotic analysisInequalitiesInteractive
21 July 2026·5 min
GeneralExposition
An interactive tessellation proof of the law of cosines, organised over the two-dimensional moduli space of triangle shapes.
GeometryTessellationsInteractive
21 July 2026·16 min
GeneralExposition
An expository graph-theoretic classification of triangular binary kolam tiles on an octahedron.
KolamsGraph theoryPolyhedraSymmetry
20 July 2026·10 min
GeneralExposition
An interactive common-lattice proof of Pythagoras’ theorem, with historical anchor positions from a medieval dissection to Perigal and beyond.
GeometryTessellationsInteractive
17 July 2026·19 min
GeneralExposition
An interactive exposition connecting square kolam tiles, graph theory, Boolean satisfiability, exhaustive enumeration, and Burnside’s lemma.
KolamsCombinatoricsGraph theoryBoolean satisfiabilityBurnside's lemmaSymmetry