cherry: (escape)
Cherry ([personal profile] cherry) wrote2005-04-07 08:38 pm

(no subject)

I haven't really had anything interesting to say as of late.

Mainly because all the things I've been doing are school related, and even I don't find most of my courses interesting. *G*

Today, I present you with *cough* proof that sometimes one does in fact, equal two.

x=x
x^2=x^2
x^2-x^2=x^2-x^2
x(x-x)=(x-x)(x+x)
x=(x+x)
1x=2x
1=2

[identity profile] nute.livejournal.com 2005-04-08 02:54 am (UTC)(link)
x=x
x^2=x^2
x^2-x^2=x^2-x^2
x(x-x)=(x-x)(x+x)
x=(x+x)
1x=2x
1=2

Step 4 is reductible to zero. (x-x) always = 0.

[identity profile] cherryice.livejournal.com 2005-04-08 03:02 am (UTC)(link)
x=x also simplifies to zero (in the same manner that x-3=5 reduces to x-8=0), if you want to go that route. The entire thing is reliant upon the manipulation of a zero sum equation. Hence the "*cough.*"

It's just something we've been tossing around at school, because calculus is inspiring much hatred, and it makes some people feel a little better if they can throw their hands up in the air and say "See? NONE of it makes any sense!"

[identity profile] cgilmore.livejournal.com 2005-04-08 11:12 am (UTC)(link)
I was going to say the same thing, but it occurs to me that the implied operation at step 4 is probably dividing both sides by (x-x). Might want to explicitly include that as step 4a for the sake of completeness. :)

[identity profile] cherryice.livejournal.com 2005-04-08 10:35 pm (UTC)(link)
Er. Yes. I thought that was a little obvious -- after all, where else did the (x-x) go?

Then I realized that no everyone is coming off of their fourth straight term of calculus.

[identity profile] cherryice.livejournal.com 2005-04-08 10:38 pm (UTC)(link)
It's just been pointed out to me that you might have meant -- "You got rid of it, and it's multiplying onto zero now."

You can also pull (x-x) off of each side and that leaves the x = (x+x)

I'm going back to the dork corner now...

[identity profile] elvenjen4.livejournal.com 2005-04-08 04:00 am (UTC)(link)
We "proved" somewhere that 1 < 0. It was creepy.

Math is weird.

[identity profile] fullycompletely.livejournal.com 2005-04-08 05:48 am (UTC)(link)
Wow, are you guys nerdy. :p

Your icon makes me think of The Hours, C.

[identity profile] cherryice.livejournal.com 2005-04-08 10:41 pm (UTC)(link)
If you think I'm bad, you should talk to the people who are actually into engineering. I'm just saying.

Also, re: The Hours -- is it worth seeing? I've heard good things.

[identity profile] cherryice.livejournal.com 2005-04-08 10:39 pm (UTC)(link)
Math is -- beh. It can screw off and die, for all I care.

This is my last actual calculus class, though. After this, it's just "Mathematical Methods" offered by my department.

[identity profile] elvenjen4.livejournal.com 2005-04-09 12:14 am (UTC)(link)
What's mathematical methods? That sounds like proofs...

Did you have to take discrete, stats, linear algebra, or differential equations?

Ooh, next time you're free/procrastinating, I need a geek icon! Cause I totally am.

[identity profile] cherryice.livejournal.com 2005-04-10 01:52 am (UTC)(link)
I've taken separate stats course, integral and differential calculus, "intermediate" calculus, linear algebra, differntial equations, infinite sequences and series.

I'm odd. I find the infinite sequences and series stuff much easier to understand than differential equations we did earlier, while everyone else I know thinks the opposite.

I'm not sure what the 'mathematical methods' is going to cover. It's kind of a "The math department isn't the best and they fail too many students so as soon as we can get away with it we're just going to teach them ourselves" type thing, I think.