Digonal gyrobicupolic ring (EntityTopic, 17)

From Hi.gher. Space

(Difference between revisions)
(infobox)
m (conventional link placement)
Line 9: Line 9:
}}}}
}}}}
-
'''K4.8''' is the first as-yet-unclassified convex [[segmentochoron]]. Its cells are 1 tetrahedron, 4 square pyramids and 2 triangular prisms. Its faces are 1+4 squares and 4+4+4 triangles. It has 2+4+4+8 edges and 4+4 vertices.
+
'''K4.8''' is the first as-yet-unclassified convex [[segmentochoron]]. Its cells are 1 [[tetrahedron]], 4 [[square pyramid]]s and 2 [[triangular prism]]s. Its faces are 1+4 [[square]]s and 4+4+4 [[triangle]]s. It has 2+4+4+8 edges and 4+4 vertices.
[[Keiji]] studied it explicitly to try to understand more about the segmentochora.
[[Keiji]] studied it explicitly to try to understand more about the segmentochora.
Line 16: Line 16:
It is possible to construct K4.8 from three different pairs of polytopes:
It is possible to construct K4.8 from three different pairs of polytopes:
{| style='text-align: center;'
{| style='text-align: center;'
-
|<[#img [hash FQJDJCGRXBSBP94RHQHKJEA2MQ]]><br/>[[Square pyramid]] and<br/>opposite [[triangle]] highlighted
+
|<[#img [hash FQJDJCGRXBSBP94RHQHKJEA2MQ]]><br/>Square pyramid and<br/>opposite triangle highlighted
-
|<[#img [hash E1T3GH5F04TPYTM0RR4485SQF4]]><br/>[[Tetrahedron]] and<br/>opposite [[square]] highlighted
+
|<[#img [hash E1T3GH5F04TPYTM0RR4485SQF4]]><br/>Tetrahedron and<br/>opposite square highlighted
-
|<[#img [hash 0NF1CPV2F19RM64G3F450VANMY]]><br/>[[Triangular prism]] and<br/>opposite [[digon]] highlighted
+
|<[#img [hash 0NF1CPV2F19RM64G3F450VANMY]]><br/>Triangular prism and<br/>opposite digon highlighted
|}
|}

Revision as of 14:32, 27 August 2012


K4.8 is the first as-yet-unclassified convex segmentochoron. Its cells are 1 tetrahedron, 4 square pyramids and 2 triangular prisms. Its faces are 1+4 squares and 4+4+4 triangles. It has 2+4+4+8 edges and 4+4 vertices.

Keiji studied it explicitly to try to understand more about the segmentochora.

Projections

It is possible to construct K4.8 from three different pairs of polytopes:

ExPar: [#img] is obsolete, use [#embed] instead
Square pyramid and
opposite triangle highlighted
ExPar: [#img] is obsolete, use [#embed] instead
Tetrahedron and
opposite square highlighted
ExPar: [#img] is obsolete, use [#embed] instead
Triangular prism and
opposite digon highlighted