A019954 Decimal expansion of tangent of 56 degrees.

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

Offset

1,2

Comments

Also the decimal expansion of cotangent of 34 degrees. - Ivan Panchenko, Sep 01 2014

Links

Ivan Panchenko, Table of n, a(n) for n = 1..1000

Index entries for algebraic numbers, degree 24.

Example

1.4825609685127402547871571491544300304798462314658470049847...

Mathematica

RealDigits[Tan[14*Pi/45], 10, 100][[1]] (* G. C. Greubel, Nov 22 2018 *)
RealDigits[Tan[56 Degree], 10, 120][[1]] (* Harvey P. Dale, Jan 18 2019 *)

Prog

(PARI) default(realprecision, 100); tan(14*Pi/45) \\ G. C. Greubel, Nov 22 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(14*Pi(R)/45); // G. C. Greubel, Nov 22 2018
(SageMath) numerical_approx(tan(14*pi/45), digits=100) # G. C. Greubel, Nov 22 2018

Crossrefs

Cf. A019865 (sine of 56 degrees).

Sequence in context: A368646 A197483 A366018 * A072616 A059627 A200603

Adjacent sequences: A019951 A019952 A019953 * A019955 A019956 A019957

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved