傑伊的大部分朋友和家人都不信教，他並不總是能輕鬆地和他們談論自己的新信仰。
A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.
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The rewrite engine is an absolutely brilliant invention by John Brant and Don Roberts, introduced with the Refactoring Browser (see “A Refactoring Tool for Smalltalk”, 1997). It gives us AST-level matching and rewriting with astonishing power.
Nava experiencing what she calls “pumpkin day” last October.