• CustardFist@feddit.nl
    link
    fedilink
    English
    arrow-up
    61
    arrow-down
    3
    ·
    14 days ago

    I once tried to start a conversation with a girl at a party, but she immediately said she had a boyfriend and pointed at him.
    So I had a great, long talk with her boyfriend the whole evening, drinking beers, making jokes and laughing hysterically, while the girl stood in the corner by herself with a glass of water, looking pissed, car keys dangling from her finger.

    What a great night. 😄

    • LiPoly@lemmynsfw.com
      link
      fedilink
      arrow-up
      24
      arrow-down
      3
      ·
      13 days ago

      I’m going to go with “what is a story that started out real but you made up the end in your head on your way home?”

      • Maven (famous)@lemmy.zip
        link
        fedilink
        arrow-up
        2
        ·
        12 days ago

        CustardFist would literally never make up anything! Look at their profile! They meticulously document every aspect of their real actual life in comic form!

      • TechieDamien@lemmy.ml
        link
        fedilink
        arrow-up
        34
        arrow-down
        2
        ·
        14 days ago

        Don’t know why you are being down voted. You are correct. There is a difference between a square root and the solutions of x2 = n.

        • Acters@lemmy.world
          link
          fedilink
          arrow-up
          12
          ·
          14 days ago

          Yeah, square root implies absolute numbers. You need to manually multiply by -1 to get the other solution to x^2

        • CommanderCloon@lemmy.ml
          link
          fedilink
          arrow-up
          13
          arrow-down
          6
          ·
          edit-2
          12 days ago

          No?

          In mathematics, a square root of a number x is a number y such that y² = x; in other words, a number y whose square (the result of multiplying the number by itself, or y ⋅ y) is x. For example, 4 and −4 are square roots of 16 because 4² = ( − 4 )² = 16.

          Wikipedia


          Edit: I’m wrong lol, there is a difference between the square root function, which accepts two results, and the square root, or principal square root, which is a unique positive number

          • Opisek@lemmy.world
            link
            fedilink
            arrow-up
            27
            arrow-down
            2
            ·
            edit-2
            14 days ago

            So close yet so far. If only you had read ONE more paragraph.

            Every nonnegative real number x has a unique nonnegative square root, called the principal square root or simply the square root (with a definite article, see below), which is denoted by √x where the symbol “√” is called the radical sign or radix.

            • CommanderCloon@lemmy.ml
              link
              fedilink
              arrow-up
              2
              ·
              edit-2
              12 days ago

              This sentence made no sense to me as it directly contradicted the previous one. But it’s just a confusion on my part between the function called square root, which confusingly outputs two different numbers called “square roots”, and “the” number called square root; I’ve edited my comment. Thanks for correcting me!

              • Opisek@lemmy.world
                link
                fedilink
                arrow-up
                2
                ·
                12 days ago

                Yeah, I see how that can happen. Very confusing to have the same name for two things differentiated only by the use of a definite or indefinite article.

          • wdx@feddit.org
            link
            fedilink
            arrow-up
            2
            ·
            edit-2
            13 days ago

            Look at the inverse of the square root function, f(x)=x² (https://www.desmos.com/calculator/2v5gzbhru8)

            You can get the sqrt of a given y by looking at the x axis. E.g. the value of y=4 has two solutions, x=2 and x=-2. This however does not mean that the sqrt of -4 is also 2! If you look at graph you can see that there are no solutions for y less than 0.

            sqrt(-1) , sqrt(-2) (i ill omit imaginary numbers here) and so on do not have a solution. There is nothing you can replace with such that x × x is < 0 because multiplying two negatives always nets a positive.

  • GiveOver
    link
    fedilink
    arrow-up
    38
    arrow-down
    8
    ·
    14 days ago

    A stranger asked me for the time a few weeks ago and I realised it was the first time in 10+ years. It just doesn’t happen anymore. Another thing ruined by millennials