Cut the Cards
08-24-2020, 01:57 PM (This post was last modified: 08-24-2020 02:07 PM by Gerson W. Barbosa.)
Post: #7
 Gerson W. Barbosa Senior Member Posts: 1,454 Joined: Dec 2013
RE: Cut the Cards
(07-31-2020 12:24 AM)John Keith Wrote:
(07-30-2020 09:49 PM)Jim Horn Wrote:  So, it approaches x*(ln(x)+0.57721), where the latter constant is the Euler-Mascheroni constant.

Or in other words, n*H(n), where H(n) is the nth harmonic number. (Albert's first formula in post #2)

The H(n) function can be easily defined on the HP 50g:

« 1. + Psi 1. Psi - »

'H' STO

For instance,

52 ENTER ENTER H × 235.978285436
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 Messages In This Thread Cut the Cards - David Hayden - 07-30-2020, 08:00 PM RE: Cut the Cards - Albert Chan - 07-30-2020, 08:58 PM RE: Cut the Cards - Albert Chan - 08-21-2020, 11:00 PM RE: Cut the Cards - Jim Horn - 07-30-2020, 09:49 PM RE: Cut the Cards - John Keith - 07-31-2020, 12:24 AM RE: Cut the Cards - Gerson W. Barbosa - 08-24-2020 01:57 PM RE: Cut the Cards - Albert Chan - 08-25-2020, 06:14 PM RE: Cut the Cards - Albert Chan - 07-30-2020, 10:21 PM RE: Cut the Cards - pinkman - 08-24-2020, 09:49 PM RE: Cut the Cards - Gerson W. Barbosa - 08-25-2020, 11:41 PM RE: Cut the Cards - Albert Chan - 08-26-2020, 03:06 AM RE: Cut the Cards - Gerson W. Barbosa - 08-26-2020, 08:23 AM RE: Cut the Cards - Albert Chan - 08-26-2020, 02:13 PM RE: Cut the Cards - Gerson W. Barbosa - 08-26-2020, 06:13 PM RE: Cut the Cards - Gerson W. Barbosa - 08-27-2020, 10:07 PM RE: Cut the Cards - Albert Chan - 08-28-2020, 09:26 PM RE: Cut the Cards - Albert Chan - 08-29-2020, 04:02 PM RE: Cut the Cards - Gerson W. Barbosa - 08-28-2020, 11:39 PM RE: Cut the Cards - Albert Chan - 06-23-2021, 12:08 AM

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