A019950 Decimal expansion of tangent of 52 degrees.

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

Offset

1,2

Comments

Also the decimal expansion of cotangent of 38 degrees. - Ivan Panchenko, Sep 01 2014

Links

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

Example

1.279941632193078780311029847571991192123151885270459380700291...

Mathematica

RealDigits[Tan[13*Pi/45], 10, 100][[1]] (* G. C. Greubel, Nov 23 2018 *)

Prog

(PARI) default(realprecision, 100); tan(13*Pi/45) \\ G. C. Greubel, Nov 23 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(13*Pi(R)/45); // G. C. Greubel, Nov 23 2018
(Sage) numerical_approx(tan(13*pi/45), digits=100) # G. C. Greubel, Nov 23 2018

Crossrefs

Cf. A019861 (sine of 52 degrees).

Sequence in context: A120483 A124823 A086725 * A201892 A352447 A323528

Adjacent sequences: A019947 A019948 A019949 * A019951 A019952 A019953

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved