rockstarpeach: (wtf)
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posted by [personal profile] rockstarpeach at 10:52pm on 27/08/2016
Okay, I can't be the only one who hates it when they're agonising over an equation or spreadsheet and just can't get it to balance.

Yeah, you know you've been there.

Work has been a bitch to me this week and so I bring you a little nerdy math fun and an excuse you can always use when numbers don't go your way. It's not your fault!! It's because 2 = 1.

Here's the proof.

Suppose a = b.

Given that, a2 = ab

a2-b2 = ab - b2

using difference of squares we get

(a+b)(a-b) = b(a-b)

when we factor out a-b we get

a+b = b

or, b+b = b

or, 2 = 1.

See? Not your fault all those numbers don't add up!

Heh, as an aside, my partial differential equations prof refused to give me the results on my final exam until I found the error in this proof. Not gonna lie, it took me more than ten minutes. I was nervous, okay?
There are 7 comments on this entry. (Reply.)
 
posted by [identity profile] amberdreams.livejournal.com at 11:48am on 28/08/2016
Um...
 
posted by [identity profile] rockstarpeach.livejournal.com at 11:19pm on 28/08/2016
It's funny, I promise.
 
posted by [identity profile] amberdreams.livejournal.com at 06:59am on 29/08/2016
My mind goes utterly blank faced with anything mathematical so I'll take your word for it! LOL
 
posted by [identity profile] snogged.livejournal.com at 12:45pm on 28/08/2016
Math is not my strong suit. LOL.
 
posted by [identity profile] rockstarpeach.livejournal.com at 11:20pm on 28/08/2016
Mine either! Which made university a very interesting place...
 
posted by [identity profile] hugemind.livejournal.com at 02:11pm on 28/08/2016
Not getting an equation to work is very frustrating. I've learnt that the first thing I need to check are the signs and then I'll check the rest of the math.

But ERROR: DIVBYZERO is something I sometimes get out of data analysis, so I've learnt to be sensitive to that as well. :)
 
posted by [identity profile] rockstarpeach.livejournal.com at 11:23pm on 28/08/2016
Yay you!!

Heh. Well, it probably wasn't actually ten minutes, but it was a good three or four reads of the proof before I spotted the mistake. I felt like such a tool!

In my defense, I hadn't seen an actual number in two years. You know what it's like to study math - every equation is nothing but variables. You forget they have actual values after a while :)

No though, it's nothing but numbers for me :(

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