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Sep 5, 2013 at 17:31 history edited Pietro Majer CC BY-SA 3.0
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Sep 4, 2011 at 22:31 comment added Pietro Majer Actually, since the $Q_n$ satisfy the same recurrence relation of the $P_n$ (mathworld.wolfram.com/LegendreFunctionoftheSecondKind.html) it is not surprising that so do $W_{n-1}=P_n\arctan(z) -Q_n$.
Sep 4, 2011 at 21:24 history edited Pietro Majer CC BY-SA 3.0
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Sep 4, 2011 at 19:22 history edited Pietro Majer CC BY-SA 3.0
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Sep 4, 2011 at 19:15 history edited Pietro Majer CC BY-SA 3.0
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Sep 4, 2011 at 19:02 history answered Pietro Majer CC BY-SA 3.0