Re: [math-fun] Puzzle: Find limiting angle as dimension -> oo
28 Nov
2002
28 Nov
'02
5:36 a.m.
<< I'll guess the limit is 90 degrees on the grounds that random vectors in high dimensional spaces tend to be orthogonal.
Maybe so, but these aren't random! Regards, Dan
28 Nov
28 Nov
2:31 p.m.
New subject: [math-fun] Puzzle: Find limiting angle as dimension -> oo
Let v_n be the vector in R^(n-1) defined as (1/n, 2/n,...,(n-1)/n).
Let w_n be the vector in R^(n-1) with the same coordinates in reverse order.
Find the limit as n -> oo of the angle between v_n and w_n.
A partridge in a pear tree?
(Try this without using numerical approximation or summation-of-powers formulae.)
Is there a simple geometric reason for the answer? I don't know.
--Dan
-- Mike Stay staym@datawest.net
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