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A119806 Decimal expansion of cos(gamma). 2
8, 3, 7, 9, 8, 5, 2, 8, 7, 8, 8, 0, 1, 9, 6, 5, 3, 9, 9, 5, 4, 9, 9, 2, 8, 6, 1, 2, 5, 8, 9, 4, 9, 7, 2, 4, 8, 0, 8, 6, 5, 9, 2, 0, 1, 3, 2, 4, 1, 7, 6, 6, 5, 7, 9, 0, 4, 1, 1, 7, 8, 9, 3, 5, 5, 6, 7, 7, 6, 9, 3, 6, 8, 8, 8, 0, 2, 6, 2, 2, 2, 3, 2, 7, 5, 4, 9, 4, 1, 4, 6, 8, 6, 5, 4, 2, 1, 9, 1, 7, 5, 6, 8, 2, 3 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

This is the real part of exp(i*gamma), where gamma is the Euler-Mascheroni constant A001620. See A119807 for the imaginary part. The constant exp(gamma) (A073004) appears in many formulas. Does exp(i*gamma)?

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..10000

EXAMPLE

0.83798528788019653995499286125894972480865920132418...

MATHEMATICA

RealDigits[Cos[EulerGamma], 10, 150][[1]]

PROG

(PARI) default(realprecision, 100); cos(Euler) \\ G. C. Greubel, Aug 30 2018

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); Cos(EulerGamma(R)) // G. C. Greubel, Aug 30 2018

CROSSREFS

Sequence in context: A099284 A061444 A011214 * A248296 A217732 A089260

Adjacent sequences:  A119803 A119804 A119805 * A119807 A119808 A119809

KEYWORD

cons,nonn

AUTHOR

T. D. Noe, May 24 2006

STATUS

approved

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Last modified September 23 23:21 EDT 2018. Contains 315306 sequences. (Running on oeis4.)