Ditorus (EntityTopic, 11)
From Hi.gher. Space
(Difference between revisions)
(update to STS) |
m |
||
| Line 6: | Line 6: | ||
| genus=1 | | genus=1 | ||
| ssc=<nowiki>[[</nowiki>(xy)z]Tw]T | | ssc=<nowiki>[[</nowiki>(xy)z]Tw]T | ||
| + | | ssc2=T(((2)1)1) | ||
| extra={{STS Rotope | | extra={{STS Rotope | ||
| attrib=pure | | attrib=pure | ||
Revision as of 16:34, 28 October 2008
The ditorus is unique as it is the only rotope in four dimensions or less that has a pocket.
Equations
- Variables:
R ⇒ major radius of the ditorus
r ⇒ middle radius of the ditorus
a ⇒ minor radius of the ditorus
- All points (x, y, z, w) that lie on the surcell of a ditorus will satisfy the following equation:
(sqrt((sqrt(x2 + y2) - a)2 + z2) - r)2 + w2 = R2
- The parametric equations are:
x = (R + (r + a cos th3) cos th2) cos th1
y = (R + (r + a cos th3) cos th2) sin th1
z = (r + a cos th3) sin th2
w = a sin th3
- The hypervolumes of a ditorus are given by:
total surface area = 0
surcell volume = 8π3Rra
bulk = 4π3a2rR
- The realmic cross-sections (n) of a ditorus are:
Unknown
| Notable Tetrashapes | |
| Regular: | pyrochoron • aerochoron • geochoron • xylochoron • hydrochoron • cosmochoron |
| Powertopes: | triangular octagoltriate • square octagoltriate • hexagonal octagoltriate • octagonal octagoltriate |
| Circular: | glome • cubinder • duocylinder • spherinder • sphone • cylindrone • dicone • coninder |
| Torii: | tiger • torisphere • spheritorus • torinder • ditorus |
