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2019
3795

Tickling (2018)

Before our kids learned to talk, I would play tickles with them. I would make tickling gestures as I moved towards them, they would start giggling a little, then I would tickle them and they would laugh. We'd continue until they seemed to be done with the game, and then we'd move on to something else. As they got…

3797

US Army applying new areas of math

Many times on this blog I've argued that the difference between pure and applied math is motivation. As my graduate advisor used to say, “Applied mathematics is not a subject classification. It's an attitude.” Traditionally there was general agreement regarding what is pure math and what is applied. Number theory and…

3801

Swift UTF-8 String

Swift 5 switches the preferred encoding of strings from UTF-16 to UTF-8 while preserving efficient Objective-C-interoperability. Because the String type abstracts away these low-level concerns, no source-code changes from developers should be necessary*, but it’s worth highlighting some of the benefits this move gives…