A019820 Decimal expansion of sine of 11 degrees.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

An algebraic number of degree 48 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 48.

Crossrefs

Cf. A019810, A019819, A019889, A019898.

Programs

Mathematica

RealDigits[Sin[11*Pi/180],10,99][[1]] (* Stefano Spezia, Feb 09 2025 *)

PARI

sin(11*Pi/180) \\ Charles R Greathouse IV, Aug 27 2017

Formula

Equals A019819 * A019898 + A019810 * A019889. - R. J. Mathar, Jan 27 2021