Kreiszahl

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German[edit]

German Wikipedia has an article on:
Wikipedia de

Etymology[edit]

Kreis (circle) +‎ Zahl (number)

Pronunciation[edit]

  • IPA(key): /ˈkraɪ̯sˌtsaːl/
  • (file)
  • Hyphenation: Kreis‧zahl

Noun[edit]

Kreiszahl f (genitive Kreiszahl, no plural)

  1. (mathematics) 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, ludolfsche Zahl, Ludolfzahl

Declension[edit]

Further reading[edit]

  • Kreiszahl” in Digitales Wörterbuch der deutschen Sprache
  • Kreiszahl” in Uni Leipzig: Wortschatz-Lexikon
  • Kreiszahl” in Duden online