...walk into a bar.

The first one orders a beer.

The second orders half a beer.

The third, a quarter of a beer.

The bartender says "You're all idiots", and pours two beers."

Now, allow me to be the ~~brilliant mind who will do the math for his moronic readers~~ unfunny/killjoy guy who will explain the joke here:

Let's label the mathematicians with 'n', with n going from 1 (the first guy) to ∞ (the "last" one):

We should also label the amount of beer that each one drinks as beer_{n} Then we'll have this:

...

From this we can derive the general formula that gives us beer_{n}_{}, i.e. the amount of beer that the n-th mathematician will drink:

So, all the clever barman had to do was to add all the terms in the series which, predictably gives out...

It just goes to show that ~~brilliant minds~~ nerds can have ~~humour~~ inside jokes that no-one cares about, too.

[via Talk Like a Physicist, who found it here, who in turn found it here, and so on ad ~~nauseum~~ infinitum]

(later addition: The title is -[sarcasm]obviously[/sarcasm]- a quasi-reference to this)

## November 20, 2008

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Beermathics or "*An infinite number of mathematicians...*

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