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A comment on The answer is π^2/6: What’s the question? .

Re:The answer is π^2/6: What’s the question? by lurker19 on Sunday May 15, 2011 @11:01AM (#2550042)
Theorem without proof is unsatisfying.
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Re:The answer is π^2/6: What’s the question? by BrentRitterbeck on Sunday May 15, 2011 @11:30AM (#2550090)
This includes a brief sketch of Euler's argument as well as a several formal methods of proof:

http://en.wikipedia.org/wiki/Basel_problem

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Re:The answer is π^2/6: What’s the question? by gyom on Sunday May 15, 2011 @01:41PM (#2550344)
You can find the proof by looking for documentation about the zeta function.
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