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Cake day: June 12th, 2023

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  • TwilightKiddy@programming.devtoScience Memes@mander.xyzTrigo-nom-etry
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    8 days ago

    If someone didn’t learn enough trigonometry in school:

    1+tan2c = cos2c/cos2c + sin2c/cos2c = (cos2c + sin2c)/cos2c = 1/cos2c;

    sqrt(1/cos2c) = |sec c|

    And here is for the people who still don't get the joke

    The reading of the answer is very similar to the word “sexy”, which makes the whole sentence a reference to the song “Sexy and I Know It” by LMFAO.



  • The divisability rule for 7 is that the difference of doubled last digit of a number and the remaining part of that number is divisible by 7.

    E.g. 299’999 → 29’999 - 18 = 29’981 → 2’998 - 2 = 2’996 → 299 - 12 = 287 → 28 - 14 = 14 → 14 mod 7 = 0.

    It’s a very nasty divisibility rule. The one for 13 works in the same way, but instead of multiplying by 2, you multiply by 4. There are actually a couple of well-known rules for that, but these are the easiest to remember IMO.
















  • Well, jokes aside, people who install Arch usually want maximum flexibility out of their system (I have no idea why you would torture yourself like that otherwise). And after some time spent with Manjaro, I can confidently say that it greatly sacrifices your ability to tinker with the system in the name of user friendliness. A great distro to start with, but if you still like it after a couple of months, you probably didn’t need Arch in the first place.