digon

EnglishEdit

A digon with an internal area (the green portion) can be depicted on the surface of a sphere if its vertices are antipodal (on opposite sides of the sphere). On a flat surface, a digon would look like a line.

EtymologyEdit

di- +‎ -gon.

PronunciationEdit

  • Hyphenation: di‧gon

NounEdit

digon ‎(plural digons)

  1. (geometry) A polygon having two edges and two vertices.
    • 2013, Brent Davis; Moshe Renert, The Math Teachers Know: Profound Understanding of Emergent Mathematics, New York, N.Y.; Abingdon, Oxon.: Routledge, ISBN 978-1-415-85843-4, page 102:
      They [the students] also came upon new and unusual mathematical figures: the digon, a two-sided polygon on a spherical space, and the apeirogon, an open polygon with infinitely many sides  []. All these discoveries brought up even more questions. Is a circle a polygon? What makes an octagon an octagon – its eight vertices, its eight sides, or both? Can a polygon cross itself? Does a polygon need to be closed?
  2. (graph theory) A pair of parallel undirected edges in a multigraph.
  3. (graph theory) A pair of antiparallel edges in a directed graph.

SynonymsEdit

TranslationsEdit

External linksEdit

AnagramsEdit


EsperantoEdit

NounEdit

digon

  1. accusative singular of digo

WelshEdit

EtymologyEdit

EB1911 - Volume 01 - Page 001 - 1.svg This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page per etymology instructions.

PronunciationEdit

  • (North Wales) IPA(key): /ˈdɨɡɔn/
  • (South Wales) IPA(key): /ˈdiɡɔn/

AdverbEdit

digon

  1. enough, sufficient

MutationEdit

Welsh mutation
radical soft nasal aspirate
digon ddigon nigon unchanged
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.
Read in another language