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A195725 Decimal expansion of arctan(sqrt(5/6)). 2
7, 3, 9, 8, 8, 0, 7, 7, 4, 3, 7, 8, 7, 4, 0, 7, 6, 6, 8, 7, 3, 1, 8, 1, 0, 8, 3, 4, 3, 4, 8, 2, 0, 3, 7, 4, 1, 0, 2, 4, 0, 2, 5, 9, 5, 6, 5, 9, 6, 4, 5, 2, 1, 4, 0, 9, 0, 9, 6, 6, 7, 3, 1, 1, 6, 7, 2, 0, 9, 1, 3, 4, 4, 1, 4, 5, 7, 5, 7, 2, 8, 6, 3, 8, 2, 7, 4, 2, 9, 0, 4, 0, 8, 9, 0, 4, 6, 3, 6, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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

EXAMPLE

arctan(sqrt(5/6)) = 0.7398807743787407668731810834348...

MATHEMATICA

r = Sqrt[5/6];

N[ArcSin[r], 100]

RealDigits[%] (* A195720 *)

N[ArcCos[r], 100]

RealDigits[%] (* A195719 *)

N[ArcTan[r], 100]

RealDigits[%] (* A195725 *)

N[ArcCos[-r], 100]

RealDigits[%] (* A195726 *)

PROG

(PARI) atan(sqrt(5/6)) \\ G. C. Greubel, Aug 20 2018

(MAGMA) SetDefaultRealField(RealField(100)); Arctan(Sqrt(5/6)); // G. C. Greubel, Aug 20 2018

CROSSREFS

Cf. A195719, A195725, A195726.

Sequence in context: A139788 A093525 A139340 * A105168 A134883 A201329

Adjacent sequences:  A195722 A195723 A195724 * A195726 A195727 A195728

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Sep 23 2011

STATUS

approved

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Last modified January 27 10:39 EST 2022. Contains 350607 sequences. (Running on oeis4.)