A019900 Decimal expansion of tangent of 2 degrees.

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

Offset

0,2

Comments

This sequence is also decimal expansion of cotangent of 88 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

0.034920769491747730500402625773725315879174297784615...

Mathematica

First[RealDigits[Tan[Pi/90], 10, 100, -1]] (* Paolo Xausa, Nov 15 2025 *)

Prog

(PARI) tan(Pi/90) \\ Charles R Greathouse IV, Apr 30 2026

Crossrefs

Sequence in context: A389059 A246726 A377039 * A329212 A290373 A122791

Adjacent sequences: A019897 A019898 A019899 * A019901 A019902 A019903

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Extensions

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

Status

approved