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Evil, but cute & gay about it
...ramblings of the imperfectly innocent
More fun w/Google 
31st-Oct-2006 04:46 pm
Today at work, the famous "ei * pi = -1" equation came up, and I wanted to search for its proof. Not knowing the name for it, I gave Google the query e i pi -1. This gave me no search results, though, since it triggered Google Calculator. HA! The answer at first appeared to be wrong, but then I noticed it took the spaces to be multiplication, resulting in: (e * i * pi) - 1 = -1 + 8.53973422 i. On a hunch, I then searched for e^(i*pi) + 1, and, sure enough, got the right answer.

Color me impressed. Does it do matrix math and quaternions, too?
31st-Oct-2006 12:58 am (UTC)
dokuritsu has Euler's Identity tattooed on his forearm.
31st-Oct-2006 08:23 am (UTC)
That's what it's called! Yeah, I wasn't going to remember that on my own. Darn degrading brain cells.

And, yeah, someone at work has it as a tattoo also; kinda neat, in a nerdcore sort of way.
31st-Oct-2006 01:02 am (UTC)
As ted_badger implies, it's Euler's Theorem, and I've almost always seen it written as eiπ+1=0 because that way it uses all five magic numbers (0, 1, e, π, and i).
31st-Oct-2006 08:25 am (UTC)
Hm, that's true. I guess I've always remembered it as the "= -1" form, since that's shorter. It's still a freaky little equation, though. :)
6th-Nov-2006 01:56 pm (UTC)
The people that maintain the calculator take it very, very seriously.
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