A019871 Decimal expansion of sine of 62 degrees.

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

Offset

0,1

Comments

Am 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(7*pi/45) = 2F1(11/15,4/15;1/2;3/4) / 2. - R. J. Mathar, Oct 27 2008

Equals 2*A019840*A019868. - R. J. Mathar, Jan 17 2021

Example

0.88294759285892694203217136031571938608353663199954...

Mathematica

First[RealDigits[Sin[62 Degree], 10, 100]] (* Paolo Xausa, Nov 15 2025 *)

Prog

(PARI) sin(31/90*Pi) \\ Charles R Greathouse IV, Nov 06 2017

Crossrefs

Sequence in context: A344074 A377589 A011464 * A388574 A174235 A372776

Adjacent sequences: A019868 A019869 A019870 * A019872 A019873 A019874

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved