58 pointsby pfexec6 hours ago10 comments
  • rgovostes5 hours ago
    Many years ago, ~2009ish, a friend pointed out that Calculator.app was giving the wrong sign when raising a positive number to a negative exponent. It turned out to be a bug in CFNumber affecting virtually every app.

    I noticed the other day that you can type "1+1 sq ft in sq in=" and macOS will helpfully autocomplete the answer: 1,694.0031 square inches. Which is completely wrong. 2 square feet is 288 square inches. It took a few minutes to solve the puzzle of what the hell it is doing.

    So take caution trusting Apple's math, which naturally is up to 2x better³—for some value of x.

    • OptionOfT5 hours ago
      Thank you for posting this.

      I had the same issue with a different calculation. The answer was wrong.

      I thought it looks weird because I put a space after the = and the autocomplete does not add that.

    • handsclean5 hours ago
      > 1+1 sq ft in sq in=

      Fun puzzle. Spoilers ahead:

      It seems it’s considering the first 1, and not the second, to be in square meters. “(1+1) sq ft in sq in” works.

      • puce4 hours ago
        1+1 sq ft = 11.76 feet^2
    • jb19914 hours ago
      "1+1 sq ft in sq in="

      The order of operations here is quite ambiguous. It’s not obvious even to a human reader how you would expect this to be interpreted.

      • mulmen3 hours ago
        I honestly can't tell what this would mean other than 2 square feet in inches. What's the other option?
    • 5 hours ago
      undefined
  • ycui19865 hours ago
    The apple’s calculator is so bad, I cannot believe it that tech website used praise this.

    If you type too quick, it misses numbers.

    If you type too many times “+” it add too many times

    If you try to use it as old standalone calculator, things does not calculate right.

    It is hard to clear numbers.

    Just so stupid.

    • smallstepforman4 hours ago
      Its been missing touch input for over 6 years now, still cannot believe their dev teams do not have professional pride to fix such an embaressing flaw.
  • supernes3 hours ago
    Apple can save some memory by rewriting it as an Electron app.
  • pjmlp2 hours ago
    That is a lot of calculations, how can a plain calculator leak so much memory to reach 32 GB?
  • LeoPanthera5 hours ago
    I have fond memories of the Windows 3.1 calculator being unable to calculate 2.01 - 2. (It gives the answer 0.00)
  • lukeinator425 hours ago
    I don't know if xcancel is getting hugged to death or blocks all of Canada or something, but I've been getting connection refused every time I've clicked on one of their links here.
    • Marsymars5 hours ago
      Works in Canada here, but it’s probably just getting rate-limited by Twitter; I’m surprised any Nitter instance works at this point.
  • abnercoimbre4 hours ago
    Can we just say thank you for the xcancel link? I hope HN continues that trend for those of us without Twitter/X accounts.
  • mulmen5 hours ago
    [flagged]
  • dzhiurgis4 hours ago
    Link should be replaced to original content (not one that steals content and profits from impressions) https://x.com/neogoose_btw/status/1968757466570621251
    • Alifatiskan hour ago
      No it should not, using that site without a Twitter account is horrible
    • bigyabai3 hours ago
      X doesn't have a usable interface for the casual click-through audience that HN caters to. The static content is deliberately (and pointlessly) stripped to prioritize bilking X engagement over the user's engagement.

      In aggregate, people will choose to submit the option that abuses users less. Xcancel keeps the original X link unobstructed if you need it for some reason.

  • NaOH5 hours ago
    • thomassmith654 hours ago
      In 2025, it's a better user experience to link to a mirror. Whether it's ethical is a different matter. Half the articles posted to HN would go unread if someone didn't post a mirrored version in the comments.
    • ajdude5 hours ago
      As soon as I try clicking that page, I got several pop-ups trying to take me to the App Store. When I finally managed to dismiss it, I just got a full screen pop-up asking me to sign in. I can't even view the link you posted on my phone. I wish there was a better way.
    • magnio5 hours ago
      Can we get an exception to this? Twitter does not show replies (and many times, the tweet itself) if I am not logged in.
    • mayneack5 hours ago
      This is to avoid blogspam not paywalls.
      • dzhiurgis4 hours ago
        And is xcancel is charity?