Links — #math

• 4-bit floating point FP4 (Apr 26, 2026)
  John D. Cook on what FP4 numbers actually represent and the variations on the theme — useful background for anyone running quantised models.
  #ai #compsci #math
• Category Theory Illustrated: Orders (Apr 26, 2026)
  Approachable, diagram-heavy walk through ordered sets as a stepping stone into category theory.
  #compsci #math
• Some unusual trees (Apr 26, 2026)
  A tour of tree data structures you don't usually meet — finger trees, radix trees, kd-trees — and what each makes easy that a balanced binary tree doesn't.
  #compsci #essays #math
• Toffoli gates are all you need (Apr 26, 2026)
  John D. Cook on why the reversible Toffoli gate is computationally universal — and what it tells you about the thermodynamic floor of computation.
  #compsci #math
• Optimal strategy for Connect 4 (Apr 26, 2026)
  An interactive site that plays optimal Connect 4 against you, with a written explanation of the search strategy that makes it work.
  #compsci #fun #math
• Decision Trees (Mar 1, 2026)
  Interactive visual explainer of how decision trees work, from MLU Explain.
  #math #compsci #ai
• Now I Get It! (Mar 1, 2026)
  Visual, interactive explanations of math and CS concepts.
  #math #compsci
• “The Hunt for Dark Breakfast” (Mar 1, 2026)
  “A mathematical exploration treating breakfast as a simplex of milk, eggs, and flour ratios.”
  #fun #math
• What Is the Fourier Transform? (Sep 6, 2025)
  Amid revolutionary France, one man's mathematical obsession gave way to a calculation that now underpins much of mathematics and physics.
  #math

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