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You are not logged in. #1 20100320 22:45:06#2 20100320 23:00:19
Re: Cute little problem I saw on another siteAh, now I see how this works. Nice puzzle. Why did the vector cross the road? It wanted to be normal. #3 20100323 17:37:04
Re: Cute little problem I saw on another siteIn general, for , we have This can be proved by induction. For the inductive step, note that Hence, for this problem, #4 20100507 05:54:09
Re: Cute little problem I saw on another site
This is a very neat formula. It also proves that if then −1 ∊ M_{n} 