The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A175315 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A175315

Decimal expansion of exp(Pi) - exp(-Pi).
(history; published version)

#11 by Harvey P. Dale at Wed Aug 28 10:52:54 EDT 2019

STATUS

editing

approved

#10 by Harvey P. Dale at Wed Aug 28 10:52:51 EDT 2019

MATHEMATICA

RealDigits[Exp[Pi]-Exp[-Pi], 10, 120][[1]] (* Harvey P. Dale, Aug 28 2019 *)

STATUS

approved

editing

#9 by Susanna Cuyler at Sat Jun 29 12:32:35 EDT 2019

STATUS

reviewed

approved

#8 by Joerg Arndt at Sat Jun 29 10:25:28 EDT 2019

STATUS

proposed

reviewed

#7 by Michel Marcus at Sat Jun 29 10:22:39 EDT 2019

STATUS

editing

proposed

#6 by Michel Marcus at Sat Jun 29 10:22:33 EDT 2019

FORMULA

Equals 2*sinh(Pi).

STATUS

reviewed

editing

Discussion

Sat Jun 29

10:22

Michel Marcus: yes

#5 by Joerg Arndt at Sat Jun 29 10:16:34 EDT 2019

STATUS

proposed

reviewed

#4 by Michel Marcus at Sat Jun 29 09:49:49 EDT 2019

STATUS

editing

proposed

Discussion

Sat Jun 29

10:16

Joerg Arndt: 2*sinh(Pi)

#3 by Michel Marcus at Sat Jun 29 09:49:44 EDT 2019

LINKS

N. Kurokawa, M. Wakayama, <a href="https://dml.cz/handle/10338.dmlcz/127942">A generalization of Lerch’s formula</a>, Czechoslovak Math. J. 54 (2004), 941-947.

FORMULA

Equals A039661 - A093580.

EXAMPLE

equals 23.0974787145154967559546686307...

PROG

(PARI) exp(Pi) + exp(-Pi) \\ Michel Marcus, Jun 29 2019

CROSSREFS

Cf. A039661 (exp(Pi)), A093580 (exp(-Pi)), A175314.

STATUS

approved

editing

#2 by Russ Cox at Fri Mar 30 17:40:19 EDT 2012

AUTHOR

_R. J. Mathar (mathar(AT)strw.leidenuniv.nl), _, Apr 01 2010

Discussion

Fri Mar 30

17:40

OEIS Server: https://oeis.org/edit/global/190