# Category:Non-Euclidean geometry

Computing portal |

Here is a list of articles in the Non-Euclidean geometry category of the Computing portal that unifies foundations of mathematics and computations using computers. Within contemporary geometry there are many kinds of geometry that are quite different from Euclidean geometry, first encountered in the forms of elementary geometry, plane geometry of triangles and circles, and solid geometry. The conventional meaning of *Non-Euclidean geometry* is the one set in the nineteenth century: the fields of elliptic geometry and hyperbolic geometry created by dropping the parallel postulate. These are very special types of Riemannian geometry, of constant positive curvature and constant negative curvature respectively.

## Subcategories

This category has the following 3 subcategories, out of 3 total.

### G

### H

### S

## Pages in category "Non-Euclidean geometry"

The following 11 pages are in this category, out of 11 total.

- Non-Euclidean geometry
*(computing)*

### C

- Clifford parallel
*(computing)*

### D

- Dehn plane
*(computing)*

### E

- Elliptic geometry
*(computing)*

### G

- Geometry of Complex Numbers
*(computing)*

### L

- Lénárt sphere
*(computing)* - Limiting parallel
*(computing)*

### N

- Non-Euclidean crystallographic group
*(computing)* - Non-Euclidean surface growth
*(computing)*

### P

- Parallel postulate
*(computing)*

### S

- Saccheri–Legendre theorem
*(computing)*