this post was submitted on 30 Mar 2025
133 points (98.5% liked)
Asklemmy
47737 readers
770 users here now
A loosely moderated place to ask open-ended questions
If your post meets the following criteria, it's welcome here!
- Open-ended question
- Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
- Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
- Not ad nauseam inducing: please make sure it is a question that would be new to most members
- An actual topic of discussion
Looking for support?
Looking for a community?
- Lemmyverse: community search
- sub.rehab: maps old subreddits to fediverse options, marks official as such
- !lemmy411@lemmy.ca: a community for finding communities
~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~
founded 6 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I bought a cheap scientific calculator for math class. When I tried to multiply .5 by .5 it gave a long irrational number instead of .25. then I had to try to explain to the store clerk why that was wrong before they would accept the return
Ah floating point math. Works fine for 90% of use cases, until it doesn't.
Weirdly though it wasn't remotely close to the right answer so I don't think it was floating point malarkey. I always assumed some defect but I guess we'll never know.now I wish I had kept it so I could have sent it to Matt Parker for his calculator reviews