Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
surface
|
| gptkbp:discoveredIn |
19th century
|
| gptkbp:field |
gptkb:algebraic_geometry
gptkb:mathematics differential geometry |
| gptkbp:generation |
inversion of a torus, cylinder, or double cone
|
| gptkbp:hasCurvatureLines |
circles
straight lines |
| gptkbp:hasEquation |
quartic equation in Cartesian coordinates
|
| gptkbp:hasProperty |
all lines of curvature are circles or straight lines
|
| gptkbp:hasSpecialCase |
gptkb:butter
cone cylinder |
| https://www.w3.org/2000/01/rdf-schema#label |
Dupin cyclide
|
| gptkbp:isA |
quartic surface
canal surface cyclide |
| gptkbp:namedAfter |
gptkb:Charles_Dupin
|
| gptkbp:usedIn |
geometric modeling
computer-aided geometric design |
| gptkbp:bfsParent |
gptkb:Charles_Dupin
|
| gptkbp:bfsLayer |
7
|