A019966 Decimal expansion of tangent of 68 degrees.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Also the decimal expansion of cotangent of 22 degrees. - Ivan Panchenko, Sep 01 2014

Examples

			2.475086853416295825240013246076174321412256645379466555473741...
		

Links

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

Crossrefs

Cf. A019877 (sine of 68 degrees).

Programs

Magma

SetDefaultRealField(RealField(100)); R:= RealField(); Tan(17*Pi(R)/45); // G. C. Greubel, Nov 21 2018

Mathematica

RealDigits[Tan[17*Pi/45], 10, 100][[1]] (* G. C. Greubel, Nov 21 2018 *)
RealDigits[Tan[68 Degree],10,120][[1]] (* Harvey P. Dale, Jun 02 2019 *)

PARI

default(realprecision, 100); tan(17*Pi/45) \\ G. C. Greubel, Nov 21 2018

Sage

numerical_approx(tan(17*pi/45), digits=100) # G. C. Greubel, Nov 21 2018