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 1-3 of 3 results.

A019865 Decimal expansion of sine of 56 degrees.

Original entry on oeis.org

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

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Author

N. J. A. Sloane

Keywords

Comments

An algebraic number of degree 24 and denominator 2. - Charles R Greathouse IV, Nov 05 2017

Examples

			0.82903757...

Links

Programs

Formula

Equals 2*A019837*A019871. - R. J. Mathar, Jan 17 2021

A019844 Decimal expansion of sine of 35 degrees.

Original entry on oeis.org

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

Views

Author

N. J. A. Sloane

Keywords

Comments

This sequence is also decimal expansion of cosine of 55 degrees. - Mohammad K. Azarian, Jun 29 2013

Links

Programs

  • Mathematica
    RealDigits[Sin[35 Degree],10,120][[1]] (* Harvey P. Dale, Mar 26 2013 *)
  • PARI
    sin(35*Pi/180) \\ Michel Marcus, Aug 11 2014

Formula

Equals A019837 * A019892 + A019816 * A019871 = (1/2)* A019894 + A019814 * A010527. - R. J. Mathar, Jan 27 2021

A019960 Decimal expansion of tangent of 62 degrees.

Original entry on oeis.org

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

Views

Author

N. J. A. Sloane

Keywords

Comments

Also the decimal expansion of cotangent of 28 degrees. - Ivan Panchenko, Sep 01 2014

Examples

			1.880726465346332012360837595829277955375637497775204546542514851...

Links

Crossrefs

Cf. A019871 (sine of 62 degrees).

Programs

  • Magma
    SetDefaultRealField(RealField(100)); R:= RealField(); Tan(31*Pi(R)/90); // G. C. Greubel, Nov 22 2018
  • Mathematica
    RealDigits[Tan[62 Degree],10,120][[1]] (* Harvey P. Dale, Aug 20 2017 *)
RealDigits[Tan[31*Pi/90], 10, 100][[1]] (* G. C. Greubel, Nov 22 2018 *)
  • PARI
    default(realprecision, 100); tan(31*Pi/90) \\ G. C. Greubel, Nov 22 2018
  • Sage
    numerical_approx(tan(31*pi/90), digits=100) # G. C. Greubel, Nov 22 2018
Showing 1-3 of 3 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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