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When you enter 0.1 into most programs, the number that gets turned into is not 0.1. We all know this is bad optics but the form your computer actually uses is both more efficient to compute on and has appreciably lower round-off error than decimal in lengthy calculations.https://twitter.com/mykola/status/1198719315589160960 …
Also, every day at least 100 people learn this for this first time, and they're usually outraged, and one of them writes a Facebook post or blog post or whatever about it, and then they propose a fix, and that fix is inevitably a cure way worse than the disease.
Even better, if you put in 2**1000, the number is actually 2**1000, so if you like to see big powers of 2 printed you don't need any special bignum type/function, plain printf("%f", pow(2, 1000)); has got you covered.
I could read about this all day
OTOH, sexagesimal has MORE prime factors than decimal and is exact for a lot more cases. We should generalize this and use a base which is the product of even more primes... ideally ALL the primes.
My work goes through this like every month "the numbers aren't exactly what we expect!" "But how close are they to what we expect?" "Uh it's not exact!" I like to use the example .1+.2==.3 which returns false and confuses EVERYONE
My favorite dumbfuckery in Unity: https://docs.unity3d.com/ScriptReference/AsyncOperation-allowSceneActivation.html …
If that flag makes Unity all the assets but not call Awake and whatever on all the loaded GameObjects I wish they'd had that years ago
Furthermore: "0.1" is closer to 0.1 than"10.1" is to 10.1. 100.1 is further off still, and once you get to 1000.1 or 10000.1 the difference becomes very noticeable to the players of your game!
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