A019897 Decimal expansion of sine of 88 degrees.

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

Offset

0,1

Comments

Equals sin(22*Pi/45). - Wesley Ivan Hurt, Sep 01 2014

An algebraic number of degree 24 and denominator 2. - Charles R Greathouse IV, Aug 27 2017

Links

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

Index entries for algebraic numbers, degree 24

Formula

Equals 2*A019853*A019855. - R. J. Mathar, Jan 17 2021

Example

0.9993908270190957300062434400439299644952363066699967731039004...

Maple

Digits:=100: evalf(sin(22*Pi/45)); # Wesley Ivan Hurt, Sep 01 2014

Mathematica

RealDigits[Sin[22 Pi/45], 10, 100, -1][[1]] (* Wesley Ivan Hurt, Sep 01 2014 *)

Prog

(PARI) cos(Pi/90) \\ Charles R Greathouse IV, Aug 27 2017

Crossrefs

Sequence in context: A274031 A111623 A229985 * A111613 A111591 A258814

Adjacent sequences: A019894 A019895 A019896 * A019898 A019899 A019900

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved