A019902 Decimal expansion of tangent of 4 degrees.

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

Offset

0,2

Comments

This sequence is also decimal expansion of cotangent of 86 degrees. - Mohammad K. Azarian, Jun 29 2013

Links

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

Index entries for algebraic numbers, degree 24.

Example

0.0699268...

Mathematica

Join[{0}, RealDigits[Tan[4 Degree], 10, 120][[1]]] (* Harvey P. Dale, Apr 13 2016 *)

Prog

(PARI) tan(Pi/45) \\ Charles R Greathouse IV, Apr 30 2026

Crossrefs

Sequence in context: A155554 A347217 A388634 * A021147 A246709 A051496

Adjacent sequences: A019899 A019900 A019901 * A019903 A019904 A019905

Keyword

nonn,cons

Author

N. J. A. Sloane

Extensions

Zero added in front - R. J. Mathar, Feb 05 2009

Status

approved