Euklidische und Nicht-Euklidische Geometrie in Cinderella

Jürgen Richter-Gebert, Ulrich H. Kortenkamp

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We recall the concepts of Euclidean and non-Euclidean Geometry in the sense of Klein and Cayley and illustrate their importance for modern interactive (dynamic) geometry software. In particular, the use of complex numbers turns out to be the key to the most general approach to measurements in hyperbolic, elliptic, Euclidean and other geometries.

Original languageGerman
Pages (from-to)303-324
Number of pages22
JournalJournal fur Mathematik-Didaktik
Issue number3-4
StatePublished - 2000
Externally publishedYes

Cite this