this post was submitted on 03 Dec 2023
407 points (99.5% liked)
196
16593 readers
2430 users here now
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
PEMDAS sucks as a mnemonic, we can agree on this.
Try 8/2(2+2) on an actual calculator that's used by scientists.
Something like a Ti-83 would show 16, not 1.
Replace (2+2) with x:
8 / 2x = 4 / x = 4 / (2+2) = 1
Implicit multiplication takes priority over division.
My Casio fx-991 gives 1. If I put in an explicit multiplication, then I get 16.