this post was submitted on 03 Apr 2024
1280 points (98.8% liked)

Science Memes

11453 readers
607 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.

Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
[email protected]
[email protected]
[email protected]
1280
))<>(( (mander.xyz)
submitted 8 months ago by [email protected] to c/[email protected]
109 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 5 points 8 months ago* (last edited 8 months ago) (3 children)

I've never seen a calculator that had bracket keys but didn't implement the conventional order of operations.

But anyway, I'm on Team RPN.

[–] [email protected] 9 points 8 months ago (1 children)

my dumb ass reading this: "Team rock paper nscissors"

[–] [email protected] 2 points 8 months ago* (last edited 8 months ago)

RTS = rock taper scissors
FPS = frock paper scissors

[–] [email protected] 5 points 8 months ago* (last edited 8 months ago) (2 children)
[–] [email protected] 0 points 8 months ago (1 children)

Ah, I wasn't thinking of calculators that let you type in a full expression. When I was in school, only fancy graphing calculators had that feature. A typical scientific calculator didn't have juxtaposition, so you'd have to enter 6÷2(1+2) as 6÷2×(1+2), and you'd get 9 as the answer because ÷ and × have equal precedence and just go left to right.

[–] [email protected] 0 points 8 months ago (1 children)

A typical scientific calculator didn’t have juxtaposition, so you’d have to enter 6÷2(1+2) as 6÷2×(1+2)

That's not true

you’d get 9 as the answer because ÷ and × have equal precedence and just go left to right

Well, more precisely you broke up the single term 2(1+2) into 2 terms - 2 and (1+2) - when you inserted the multiplication symbol, which sends the (1+2) from being in the denominator to being in the numerator. Terms are separated by operators and joined by grouping symbols.

[–] [email protected] 0 points 8 months ago (1 children)

I'm not sure what you're getting at with your source. I'm taking about physical, non-graphic scientific calculators from the 1990s.

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago)

I’m taking about physical, non-graphic scientific calculators from the 1990s.

Yep, exact same as the calculator in the linked thread. The expression entered was 6÷2(1+2).

[–] [email protected] 0 points 8 months ago

https://plus.maths.org/content/pemdas-paradox

There's no pemdas paradox, just people who have forgotten the order of operations rules

Even two casios won’t give you the same answer:

The one on the right is an old model. As far as I'm aware Casio no longer make any models that still give the wrong answer.

[–] [email protected] 0 points 8 months ago

I’ve never seen a calculator that had bracket keys but didn’t implement the conventional order of operations.

I've seen plenty