羅式幾何 luó shì jǐ hé

DEFINITIONS

  1. hyperbolic geometry
  2. Lobachevskian geometry

CHARACTERS

羅 luó net for catching birds; gauze
式 shì
HSK 4
style, system, formula, rule
幾 jǐ how many? how much?; a few, some
何 hé
HSK 4
what, why, where, which, how