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A bunch of great tutorials by Darel Finley on a wide variety of topics:

    Programming

  • Mouseover menus
  • Quicksort
  • NSTextField focus detection
  • Mac processor count
  • NSLock
  • Color saturation change
  • HSP color system
  • Sub-pixel anti-aliasing
  • Overlapping maze
  • iPod volume issue
  • Anamorphic DVD and letterboxing
  • Instant file system snapshots
  • Unicode, UTF-8, and Mac Roman
    Geometry/Math

  • Point in polygon
  • Point in spline polygon
  • Shortest path through polygon
  • Polygon area
  • Polygon fill
  • Polygon perimeter
  • Polygon inset
  • Smallest enclosing polygon
  • Spline bounding rect
  • Spline polygon area
  • Line-line intersection
  • Calculus without calculus
  • Area of a circle
  • Pi — diameter vs. radius
  • Mandelbrot slideshow
  • Non-Euclidean geometry (blog)
  • Fifth-order polynomials (blog)
  • Perspective photo distortion
    Physics

  • Gyroscope
  • Osmosis
  • Polarizer experiment
  • Gravity table equilibrium
  • Refraction
  • Stereo Separation
  • Relativity (blog)
  • Maxwell’s demon (blog)
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