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This is a collection of Macintosh freeware, source code, and articles written by James W. Walker.

What's New on the Site

• PlainCalc has been updated to version 2.5, and is now on the Mac App Store.
• AutoPairs version 4 for macOS 13 "Ventura" is now available on the Mac App Store.
• RunningAppList, a free program for macOS 10.13 and later, has been updated to version 1.3. This version is now available on the Mac App Store.
• I have posted a new essay, Nonlinear-density Halfspace Fog
• I have posted a new essay, Computing Angle Between Vectors