857
6÷2(1+2) (programming.dev)
submitted 10 months ago* (last edited 10 months ago) by wischi@programming.dev to c/memes@lemmy.ml

https://zeta.one/viral-math/

I wrote a (very long) blog post about those viral math problems and am looking for feedback, especially from people who are not convinced that the problem is ambiguous.

It's about a 30min read so thank you in advance if you really take the time to read it, but I think it's worth it if you joined such discussions in the past, but I'm probably biased because I wrote it :)

(page 5) 50 comments
sorted by: hot top controversial new old
[-] agni@lemmings.world 2 points 10 months ago
[-] CrushKillDestroySwag@hexbear.net 2 points 10 months ago

Very cool article on an aspect of math that I've never thought too deeply about before 👍

I am so glad that nothing I do in life will ever cause this problem to matter to me.

The way I was taught in school, the answer is clearly 1, but I did read the blog post and I understand why that's actually ambiguous.

Fortunately, I don't have to care, so will sleep well knowing the answer is 1, and that I'm as correct as anyone else. :-p

load more comments (1 replies)
[-] baggins@lemmy.ca 2 points 10 months ago

That's cool and Imma let you finish but I'm not a mathematician and the answer is 9.

load more comments (5 replies)
[-] kuneho@lemmy.world 1 points 10 months ago* (last edited 10 months ago)

isn't that division sign I only saw Americans use written like this (÷) means it's a fraction? so it's 6÷2, since the divisor (or what is it called in english, the bottom half of the fraction) isn't in parenthesis, so it would be foolish to put the whole 2(1+2) down there, there's no reason for that.

so it's (6/2)*(1+2) which is 3*3 = 9.

the other way around would be 6÷(2(1+2)) if the whole expression is in the divisor and than that's 1.

tho I'm not really proficient in math, I have eventually failed it in university, but if I remember my teachers correctly, this should be the way. but again, where I live, we never use the ÷ sign, only in elementary school where we divide on paper. instead we use the fraction form, and with that, these kind of seemingly ambiguous expressions doesn't exist.

load more comments (10 replies)
[-] Lemmygradwontallowme@hexbear.net 1 points 10 months ago* (last edited 10 months ago)

The real question here is BODMAS or PEMDAS?

load more comments (7 replies)
load more comments
view more: ‹ prev next ›
this post was submitted on 12 Dec 2023
857 points (96.4% liked)

Memes

45413 readers
703 users here now

Rules:

  1. Be civil and nice.
  2. Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago
MODERATORS