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.

A179311 Decimal expansion of the real part of zeta(i), where i = sqrt(-1).

Original entry on oeis.org

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

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Author

Alonso del Arte, Jan 07 2011

Keywords

Comments

With zeta being the Riemann zeta function. Also the real part of zeta(-i). Bhatt's documentation for MathTools incorrectly identifies this constant as the real part of zeta(1 - i) (however the other example zeta values given are correct).

Examples

			zeta(i) = 0.00330022 - 0.41815545i (to eight decimal places on both parts).
		

Crossrefs

Cf. A179836 (imaginary part).

Programs

  • Mathematica
    RealDigits[N[Re[Zeta[I]], 75]][[1]]
  • PARI
    real(zeta(I)) \\ Michel Marcus, Jun 14 2019