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The Golden Mean or Ratio[(1+sqrt(5))/2] / To 20, 000 places [EPUB ebook] 

The Golden Mean or Ratio[(1+sqrt(5))/2] to 20, 000 places
This etext also contains these mathematical items:
  Catalan evaluation
  170000 digits of gamma or Euler constant
  The Artin’s Constant
  The Backhouse Constant
  Zeta(3) or Apery Constant
  Zeta(1, 2) or the derivative of Zeta function at 2
  Feigenbaum reduction parameter
  Feigenbaum bifurcation velocity constant
  Franson-Robinson constant
  The Gauss-Kusmin-Wirsing constant
  Khinchin constant
  Landau-Ramanujan constant
  The twin primes constant
  The Lengyel constant
  The Levy constant