Ludolfzahl

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German[edit]

Etymology[edit]

Ludolf (Ludolph) +‎ Zahl (number) (an irrational constant named after mathematian Ludolph van Ceulen (1540-1610))

Pronunciation[edit]

  • IPA(key): [ˈluːdɔlfˌtsaːl]
  • Hyphenation: Lu‧dolf‧zahl

Proper noun[edit]

Ludolfzahl f (genitive Ludolfzahl, no plural)

  1. (mathematics) Ludolph's number or Ludolphine number: the number π (an irrational constant representing the ratio of a circle's circumference to its diameter in Euclidean geometry; approximately 3.14159...,)
    Synonyms: π, Pi, Archimedes-Konstante, Kreiskonstante, Kreiszahl, ludolfsche Zahl

Declension[edit]

Further reading[edit]