A019891 Decimal expansion of sine of 82 degrees.

9, 9, 0, 2, 6, 8, 0, 6, 8, 7, 4, 1, 5, 7, 0, 3, 1, 5, 0, 8, 3, 7, 7, 4, 8, 6, 7, 3, 4, 4, 8, 5, 0, 7, 5, 9, 2, 5, 1, 0, 8, 9, 7, 9, 3, 7, 6, 8, 8, 8, 6, 5, 0, 0, 0, 8, 9, 7, 1, 4, 1, 2, 7, 6, 0, 0, 9, 9, 5, 8, 1, 7, 7, 2, 9, 3, 3, 6, 4, 5, 4, 9, 8, 9, 9, 1, 8, 6, 1, 6, 7, 5, 9, 6, 4, 9, 3, 0, 5

Offset

0,1

Comments

An algebraic number of degree 12 and denominator 2. - Charles R Greathouse IV, Nov 06 2017

Links

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Index entries for algebraic numbers, degree 12

Formula

Equals cos(2*Pi/45) = 2F1(17/30,13/30;1/2;3/4) / 2. - R. J. Mathar, Oct 27 2008

Equals sin(41*Pi/90). - Wesley Ivan Hurt, Aug 31 2014

Example

0.9902680687415703150837748673448507592510897937688865000...

Maple

Digits:=100: evalf(sin(41*Pi/90)); # Wesley Ivan Hurt, Aug 31 2014

Mathematica

First@RealDigits[Sin[82 Degree], 10, 120] (* Michael De Vlieger, Aug 31 2014 *)

Prog

(PARI) cos(2/45*Pi) \\ Charles R Greathouse IV, Nov 06 2017

Crossrefs

Sequence in context: A021105 A334711 A176537 * A176536 A302711 A021838

Adjacent sequences: A019888 A019889 A019890 * A019892 A019893 A019894

Keyword

nonn,cons

Author

N. J. A. Sloane.

Status

approved