A019947 Decimal expansion of tangent of 49 degrees.

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

Offset

1,3

Comments

Also the decimal expansion of cotangent of 41 degrees. - Ivan Panchenko, Sep 01 2014

Links

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

Example

1.15036840722100955587633102556957036201446504813199958962645...

Mathematica

RealDigits[Tan[49 Degree], 10, 120][[1]] (* Harvey P. Dale, Apr 18 2013 *)
RealDigits[Tan[49*Pi/180], 10, 100][[1]] (* G. C. Greubel, Nov 24 2018 *)

Prog

(PARI) default(realprecision, 100); tan(49*Pi/180) \\ G. C. Greubel, Nov 24 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(49*Pi(R)/180); // G. C. Greubel, Nov 24 2018
(Sage) numerical_approx(tan(49*pi/180), digits=100) # G. C. Greubel, Nov 24 2018

Crossrefs

Cf. A019858 (sine of 49 degrees).

Sequence in context: A062526 A264785 A197573 * A193182 A139399 A318525

Adjacent sequences: A019944 A019945 A019946 * A019948 A019949 A019950

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved