A019823 Decimal expansion of sine of 14 degrees.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

An algebraic number of degree 12 with minimal polynomial 4096*x^12 - 12288*x^10 + 512*x^9 + 13824*x^8 - 1152*x^7 - 7168*x^6 + 864*x^5 + 1680*x^4 - 248*x^3 - 144*x^2 + 24*x + 1. - Charles R Greathouse IV, Dec 06 2016

Examples

			0.241921895...
		

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000
• Index entries for algebraic numbers, degree 12

Programs

Mathematica

RealDigits[Sin[14 Degree],10,120][[1]] (* Harvey P. Dale, Dec 24 2020 *)

PARI

sin(7*Pi/90) \\ Charles R Greathouse IV, Dec 06 2016

Formula

Equals 2*A019816*A019892. - R. J. Mathar, Jan 17 2021