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.

Showing 1-2 of 2 results.

A019883 Decimal expansion of sine of 74 degrees.

Original entry on oeis.org

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

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Keywords

Comments

Equals sin(37*Pi/90). - Wesley Ivan Hurt, Sep 01 2014
An algebraic number of degree 12 and denominator 2. - Charles R Greathouse IV, Nov 06 2017

Examples

			0.9612616959383188619164970485570648735256924893407086658...
		

Programs

Formula

Equals cos(4*Pi/45) = 2F1(19/30,11/30;1/2;3/4) / 2. - R. J. Mathar, Oct 27 2008
Equals 2*A019846*A019862. - R. J. Mathar, Jan 17 2021

A019951 Decimal expansion of tangent of 53 degrees.

Original entry on oeis.org

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

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Author

Keywords

Comments

Also the decimal expansion of cotangent of 37 degrees. - Ivan Panchenko, Sep 01 2014

Examples

			1.3270448216204100371594725740869324199060412955876230162...
		

Crossrefs

Cf. A019862 (sine of 53 degrees).

Programs

  • Magma
    SetDefaultRealField(RealField(100)); R:= RealField(); Tan(53*Pi(R)/180); // G. C. Greubel, Nov 22 2018
    
  • Mathematica
    RealDigits[Tan[53*Pi/180], 10, 100][[1]] (* G. C. Greubel, Nov 22 2018 *)
  • PARI
    default(realprecision, 100); tan(53*Pi/180) \\ G. C. Greubel, Nov 22 2018
    
  • Sage
    numerical_approx(tan(53*pi/180), digits=100) # G. C. Greubel, Nov 22 2018
Showing 1-2 of 2 results.