## Simple math problem

For the discussion of math. Duh.

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xkcdfan
Posts: 140
Joined: Wed Jul 30, 2008 5:10 am UTC

### Simple math problem

1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+1x0

Everyone I have asked has gotten it wrong. Will you get it right, xkcd forums?

theodds
Posts: 23
Joined: Sat Jun 04, 2011 3:30 pm UTC

### Re: Simple math problem

Spoiler:
14.

z4lis
Posts: 767
Joined: Mon Mar 03, 2008 10:59 pm UTC

### Re: Simple math problem

Since you've posted an elementary problem and asked if we could "get it right" after incorrect answers from everyone else, I'm going to have to ask you to define all the symbols you've used.
What they (mathematicians) define as interesting depends on their particular field of study; mathematical anaylsts find pain and extreme confusion interesting, whereas geometers are interested in beauty.

letterX
Posts: 535
Joined: Fri Feb 22, 2008 4:00 am UTC
Location: Ithaca, NY

### Re: Simple math problem

Spoiler:
But when I put it in my calculator exactly like that, it says 0!!!

While I appreciate the satire, I still move to lock* on general principles, given how bloody-mindedly stupid all other similar threads have been.

* Not, of course, that there's any sort of democracy around here about that sort of thing**.
** A position which I thoroughly support! All praise to the mods, etc. etc.

Yesila
Posts: 221
Joined: Sun Dec 16, 2007 11:38 am UTC

### Re: Simple math problem

letterX wrote:But when I put it in my calculator exactly like that, it says 0!!!

Time to get a better calculator or learn how to use the one you have.

ConMan
Shepherd's Pie?
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### Re: Simple math problem

This is the latest "order of operations" thing that I've seen on facebook, following the a / b * c one. This isn't mathematics, it's troll maths - seeing people either get it wrong and be lambasted by the people who remember 2nd grade arithmetic, or get it right but then turn holier-than-thou in lambasting the people who don't. And this one isn't even slightly ambiguous, like the other one - unless you just plug it into an old calculator that can't handle proper order of operations, like letterX jokingly referred to, it's pretty easy to see that the x0 only applies to the last 1.
pollywog wrote:
Wikihow wrote:* Smile a lot! Give a gay girl a knowing "Hey, I'm a lesbian too!" smile.
I want to learn this smile, perfect it, and then go around smiling at lesbians and freaking them out.

Kirby
Posts: 199
Joined: Tue Mar 30, 2010 11:08 pm UTC

### Re: Simple math problem

Could you rewrite the expression in postfix notation? I think that would help to clear any ambiguities in the problem.

gmalivuk
GNU Terry Pratchett
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### Re: Simple math problem

ConMan wrote:This isn't mathematics, it's troll maths
Indeed.
Unless stated otherwise, I do not care whether a statement, by itself, constitutes a persuasive political argument. I care whether it's true.
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