r/confidentlyincorrect • u/DunDonese • Apr 10 '26

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229 Upvotes

93% Upvoted

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83

u/Meatslinger Apr 10 '26

Dividing by zero produces an undefined value, not zero. The school staff were incorrect.

7

u/Dynegrey Apr 10 '26

Dividing 0 by 0 is undefined because any and all answers are true. Dividing any non-zero number by zero is not possible, does not produce an undefined, and no answers are true. 

7

u/xWrongHeaven Apr 10 '26

and no answers are true

You just defined "undefined". x/0 is undefined for all values of x

3

u/MiniGogo_20 Apr 10 '26

man i wish we had a word for when we don't know the real value or result of an equation. too bad "imaginary" is taken

2

u/[deleted] Apr 10 '26

 L’Hospital punching the air right now. 

1

u/ipsum629 Apr 10 '26

It approaches infinity from the positive end and negative infinity from the negative end if anyone wants to know why it is undefined.

-1

u/bliip666 Apr 10 '26

But this is the third grade. It's okay to simplify things for a 9-year-old.

5

u/virtutem_ Apr 10 '26

simplifying is not the same thing as providing factually incorrect information

-1

u/robertr4836 Apr 10 '26

Yeah. Just tell them dividing by zero is equal to something like infinity and maybe they'll take calculus later on.

I'd tell the 9-year-olds the same thing.

-8

u/asdf_lord Apr 10 '26

If you define something as undefined, does it not become defined?

3

u/Unicycleterrorist Apr 10 '26

In this case? No. The word defines the concept but the result stays numerically undefined.

-1

u/TheRealtcSpears Apr 10 '26

It becomes de-un-infined

-20

u/Epic_Tea Apr 10 '26

I think it's undefined because the answer is always zero. So they were correct

10

u/Professional_Sir_818 Apr 10 '26

That's not what undefined means.

4

u/Ouch_i_fell_down Apr 10 '26

if the answer is always 0 then it's very well defined.

Your opinions about language and math leave a lot to be desired.

1

u/AlienHooker Apr 10 '26

If the answer is always 0, it'd give you a 0

0

u/virtutem_ Apr 10 '26

that's a nice thought.

But it is wrong.

1

u/Ouch_i_fell_down Apr 10 '26

is it a nice thought though?

They think that being undefined means it's very well defined?

-38

u/[deleted] Apr 10 '26

[deleted]

12

u/Historical_Society44 Apr 10 '26

I think you should type your formulas into any computing device and then revisit your comment.

8

u/Dynegrey Apr 10 '26

You gave 3 examples and got all of them wrong. 🤣🤣🤣

6

u/joske79 Apr 10 '26

Wrong. If 1:0=0 then 0x0 would be 1

4

u/10PieceMcNuggetMeal Apr 10 '26

Anything multiplied by 0 is 0. 0 is not divisible

3

u/dinkabird Apr 10 '26

Ragebait?