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christmas boots
Oct 15, 2012

To these sing-alongs 🎤of siren 🧜🏻‍♀️songs
To oohs😮 to ahhs😱 to 👏big👏applause👏
With all of my 😡anger I scream🤬 and shout📢
🇺🇸America🦅, I love you 🥰but you're freaking 💦me 😳out
Biscuit Hider

JuiceOne posted:

Most of these I've posted here, but there's at least one new one.

https://youtu.be/QmjmOVrol60

I never get tired of the newspaper/tv one. It gives me such a David Lynch vibe.

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ultrafilter
Aug 23, 2007

It's okay if you have any questions.


PittTheElder posted:

The ambiguity arises because mathematics doesn't specify an explicit preference to multiplication and division operations, and because they used obelus (÷) notation in a deliberate attempt to make it unclear which portions of the equation are in the numerator and denominator. Added to this is that different areas of the world use conflicting acronyms to teach order of operations, so that people on the 'gram can have lots of boring arguments about which is 'correct'. So the answer is "probably 1, but maybe 16; either way you should get better at writing equations."

In conclusion, RDRR is a land of contrasts.

An actual mathematician says you're wrong:

https://twitter.com/stevenstrogatz/status/1157312518509015040

PittTheElder
Feb 13, 2012

:geno: Yes, it's like a lava lamp.

No he doesn't:


quote:

Now realize, following Aunt Sally is purely a matter of convention. In that sense, PEMDAS is arbitrary. Furthermore, in my experience as a mathematician, expressions like 8÷2×4 look absurdly contrived. No professional mathematician would ever write something so obviously ambiguous. We would insert parentheses to indicate our meaning and to signal whether the division should be carried out first, or the multiplication.

ultrafilter
Aug 23, 2007

It's okay if you have any questions.


PittTheElder posted:

No he doesn't:

A bit earlier:

quote:

When confronted with 8 ÷ 2(2+2), everyone on Twitter agreed that the 2+2 in parentheses should be evaluated first. That’s what our teachers told us: Deal with whatever is in parentheses first. Of course, 2+2 = 4. So the question boils down to 8÷2×4.

And there’s the rub. Now that we’re faced with a division and a multiplication, which one takes priority? If we carry out the division first, we get 4×4 = 16; if we carry out the multiplication first, we get 8÷8 = 1.

Which way is correct? The standard convention holds that multiplication and division have equal priority. To break the tie, we work from left to right. So the division goes first, followed by the multiplication. Thus, the right answer is 16.

I mean yes, it's a convention and arbitrary, but it's not something where there are two different conventions.

spaceblancmange
Apr 19, 2018

#essereFerrari

CzarChasm posted:

LORD! PALMERSTON!

spaceblancmange
Apr 19, 2018

#essereFerrari

Trabant
Nov 26, 2011

All systems nominal.

ultrafilter posted:

I mean yes, it's a convention and arbitrary, but it's not something where there are two different conventions.

But there are: US settled on doing multiplication before division, much (all?) of the rest of the world does it the other way around. That's pretty much the gotcha of the meme.

spaceblancmange
Apr 19, 2018

#essereFerrari

ultrafilter posted:

An actual mathematician says you're wrong:

We should ask a different kind of mathematician and a statistician.

SpacePig
Apr 4, 2007

I'M FEELING JIMMY

JuiceOne posted:

Most of these I've posted here, but there's at least one new one.

https://youtu.be/QmjmOVrol60

Man, I love all of these, but I really thought the end of the baby one was going to be the Old Grey Mare dance.

Booourns
Jan 20, 2004
Please send a report when you see me complain about other posters and threads outside of QCS

~thanks!

Just listen to this mathematician
"uh..."
He'll tell you that you are wrong

SpacePig
Apr 4, 2007

I'M FEELING JIMMY

Booourns posted:

Just listen to this mathematician
"uh..."
He'll tell you that you are wrong

Two minus three equals negative Fun!

alexandriao
Jul 20, 2019


SpacePig posted:

Two minus three equals negative Fun!

The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.

spaceblancmange
Apr 19, 2018

#essereFerrari

Two plus two is four.
Two plus two is four.

UZR IS BULLSHIT
Jan 25, 2004

ultrafilter posted:

A bit earlier:


I mean yes, it's a convention and arbitrary, but it's not something where there are two different conventions.

Hey pal, did you get a load of the nerd?!

Lifespan
Mar 5, 2002

JuiceOne posted:

Most of these I've posted here, but there's at least one new one.

https://youtu.be/QmjmOVrol60

The scene with Bart and Old Jewish Man getting in trouble for kicking in the hallway has brought me way too much joy this week.

Bouillon Rube
Aug 6, 2009



:dudsmile:

Shinjobi
Jul 10, 2008


Gravy Boat 2k

Standing ovation

Drink-Mix Man
Mar 4, 2003

You are an odd fellow, but I must say... you throw a swell shindig.

Space Cadet Omoly
Jan 15, 2014

~Groovy~


alexandriao posted:

The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.

THAT'S A RIGHT TRIANGLE YA IDIOT!

https://www.youtube.com/watch?v=w4zqR7GhrqQ

Salted_Pork
Jun 19, 2011

Booourns posted:

Just listen to this mathematician
"uh..."
He'll tell you that you are wrong

I believe that should be a mathestician

Improbable Lobster
Jan 6, 2012

What is the Matrix 🌐? We just don't know 😎.


Buglord

fishing with the fam posted:

There is no preferential order between multiplication and division. When there is no preferential ordering, you go left to right.

Yeah

Phanatic
Mar 13, 2007

Please don't forget that I am an extremely racist idiot who also has terrible opinions about the Culture series.
If you have three Pepsis and I give you two Pepsis, how much more refreshed are you?

secular woods sex
Aug 1, 2000
I dispense wisdom by the gallon.
Umm . . . Pepsi?

stealie72
Jan 10, 2007

Their eyes locked and suddenly there was the sound of breaking glass.
\
The atomic weight of bolonium.

bitterandtwisted
Sep 4, 2006




The Duggler
Feb 20, 2011

I do not hear you, I do not see you, I will not let you get into the Duggler's head with your bring-downs.

I'm getting a lot of these references

Captain Splendid
Jan 7, 2009

Qu'en pense Caffarelli?

Seems to be working just fine :shrug:

RJWaters2
Dec 16, 2011

It was not not not so great

:eyepop:

christmas boots
Oct 15, 2012

To these sing-alongs 🎤of siren 🧜🏻‍♀️songs
To oohs😮 to ahhs😱 to 👏big👏applause👏
With all of my 😡anger I scream🤬 and shout📢
🇺🇸America🦅, I love you 🥰but you're freaking 💦me 😳out
Biscuit Hider

Trabant posted:

But there are: US settled on doing multiplication before division, much (all?) of the rest of the world does it the other way around. That's pretty much the gotcha of the meme.

Multiplication and division happen at the same time, going from left to right.

Dewgy
Nov 10, 2005

~🚚special delivery~📦

Phanatic posted:

If you have three Pepsis and I give you two Pepsis, how much more refreshed are you?

All I wanted was a Pepsi, just one Pepsi!

Doom Mathematic
Sep 2, 2008

christmas boots posted:

Multiplication and division happen at the same time, going from left to right.

Only if you're a computer.

Space Cadet Omoly
Jan 15, 2014

~Groovy~


Dewgy posted:

All I wanted was a Pepsi, just one Pepsi!

https://www.youtube.com/watch?v=LoF_a0-7xVQ

Wait a minute...."Institutionalized" by Suicidal Tendencies isn't a Simpsons reference!

christmas boots
Oct 15, 2012

To these sing-alongs 🎤of siren 🧜🏻‍♀️songs
To oohs😮 to ahhs😱 to 👏big👏applause👏
With all of my 😡anger I scream🤬 and shout📢
🇺🇸America🦅, I love you 🥰but you're freaking 💦me 😳out
Biscuit Hider

Doom Mathematic posted:

Only if you're a computer.

In a way, we're all computers

LordArgh
Mar 17, 2009

Nap Ghost

christmas boots posted:

In a way, we're all computers

i'm an abacus

ACRE & EQUAT
Aug 28, 2004

FUNERAL BREADS
WAR BREAD

LordArgh posted:

i'm an abacus

I knew I could count on you

ACRE & EQUAT fucked around with this message at 23:07 on Aug 3, 2019

GPTribefan
Jul 2, 2007
Something witty yet inspirational about the Cleveland Indians

Dewgy posted:

All I wanted was a Pepsi, just one Pepsi!

You’re so learned, papa Homer

Jonas Albrecht
Jun 7, 2012


secular woods sex posted:

Umm . . . Pepsi?

Partial Credit!

The Glumslinger
Sep 24, 2008

Coach Nagy, you want me to throw to WHAT side of the field?


Hair Elf

Second Hand Meat Mouth
Sep 12, 2001


oh man :) :(

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spatial trait
Aug 7, 2009


Lol

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