A019962 Decimal expansion of tangent of 64 degrees.

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

Also the decimal expansion of cotangent of 26 degrees. - Ivan Panchenko, Sep 01 2014

Examples

			2.050303841579296216899011070541494146767519622743242423472666...
		

Links

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

Crossrefs

Cf. A019874 (sine of 64 degrees).

Programs

Magma

SetDefaultRealField(RealField(100)); R:= RealField(); Tan(16*Pi(R)/45); // G. C. Greubel, Nov 21 2018

Mathematica

RealDigits[Tan[16*Pi/45], 10, 100][[1]] (* G. C. Greubel, Nov 21 2018 *)
RealDigits[Tan[64 Degree],10,120][[1]] (* Harvey P. Dale, Dec 29 2019 *)

PARI

default(realprecision, 100); tan(16*Pi/45) \\ G. C. Greubel, Nov 21 2018

Sage

numerical_approx(tan(16*pi/45), digits=100) # G. C. Greubel, Nov 21 2018