cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A019963 Decimal expansion of tangent of 65 degrees.

Original entry on oeis.org

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

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Examples

			2.144506920509558616356260791045922180685931574276...
		

Crossrefs

Cf. A019874 (sine of 65 degrees).

Programs

  • Magma
    SetDefaultRealField(RealField(100)); R:= RealField(); Tan(65*Pi(R)/180); // G. C. Greubel, Nov 21 2018
    
  • Mathematica
    RealDigits[Tan[65*Pi/180], 10, 100][[1]] (* G. C. Greubel, Nov 21 2018 *)
    RealDigits[Tan[65 Degree],10,120][[1]] (* Harvey P. Dale, Sep 17 2023 *)
  • PARI
    default(realprecision, 100); tan(65*Pi/180) \\ G. C. Greubel, Nov 21 2018
    
  • Sage
    numerical_approx(tan(65*pi/180), digits=100) # G. C. Greubel, Nov 21 2018