7-simpleks

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pravilni oktaekson
(7-simpleks)
7-simplex t0.svg
Ortogonalna projekcija
v Petrijevem mnogokotniku
vrsta pravilni 7-politop
družina simpleks
Schläflijev simbol {3,3,3,3,3,3}
Coxeter-Dynkinov diagram CDel node 1.pngCDel 3.pngCDel node.pngCDel 3.pngCDel node.pngCDel 3.pngCDel node.pngCDel 3.pngCDel node.pngCDel 3.pngCDel node.pngCDel 3.pngCDel node.png
6-stranske ploskve 8 6-simpleks6-simplex t0.svg
5-stranske ploskve 28 5-simpleks5-simplex t0.svg
4-stranske ploskve 56 5-celica4-simplex t0.svg
Celice 70 tetraeder3-simplex t0.svg
Stranske ploskve 56 trikotnik2-simplex t0.svg
Robovi 28
Oglišča 8
Slika oglišč 6-simpleks
Petrijev mnogokotnik osemkotnik
Coxeterjeva grupa A7 [3,3,3,3,3,3]
Dualnost sebi dualni
Lastnost konveksni

7-simpleks (tudi oktaekson ali oktatop) je v 7-razsežni geometriji sebi dualni pravilni 7-politop. Ima 8 oglišč, 28 robov, 56 trikotnih stranskih ploskev, 70 tetraederskih celic, 56 5-celic s 5 stranskimi ploskvami, 28 5-simpleksov s 6 stranskimi ploskvami in 8 6-simpleksov s 7 stranskimi ploskvami. Ima diederski kot cos−1(1/7)kar je približno 81,79°.

Koordinate oglišč[uredi | uredi kodo]

\left(\sqrt{1/28},\ \sqrt{1/21},\ \sqrt{1/15},\ \sqrt{1/10},\ \sqrt{1/6},\ \sqrt{1/3},\ \pm1\right)
\left(\sqrt{1/28},\ \sqrt{1/21},\ \sqrt{1/15},\ \sqrt{1/10},\ \sqrt{1/6},\ -2\sqrt{1/3},\ 0\right)
\left(\sqrt{1/28},\ \sqrt{1/21},\ \sqrt{1/15},\ \sqrt{1/10},\ -\sqrt{3/2},\ 0,\ 0\right)
\left(\sqrt{1/28},\ \sqrt{1/21},\ \sqrt{1/15},\ -2\sqrt{2/5},\ 0,\ 0,\ 0\right)
\left(\sqrt{1/28},\ \sqrt{1/21},\ -\sqrt{5/3},\ 0,\ 0,\ 0,\ 0\right)
\left(\sqrt{1/28},\ -\sqrt{12/7},\ 0,\ 0,\ 0,\ 0,\ 0\right)
\left(-\sqrt{7/4},\ 0,\ 0,\ 0,\ 0,\ 0,\ 0\right)

Sorodni politopi[uredi | uredi kodo]

7-simplex t0.svg
t0
7-simplex t1.svg
t1
7-simplex t2.svg
t2
7-simplex t3.svg
t3
7-simplex t01.svg
t0,1
7-simplex t02.svg
t0,2
7-simplex t12.svg
t1,2
7-simplex t03.svg
t0,3
7-simplex t13.svg
t1,3
7-simplex t23.svg
t2,3
7-simplex t04.svg
t0,4
7-simplex t14.svg
t1,4
7-simplex t24.svg
t2,4
7-simplex t05.svg
t0,5
7-simplex t15.svg
t1,5
7-simplex t06.svg
t0,6
7-simplex t012.svg
t0,1,2
7-simplex t013.svg
t0,1,3
7-simplex t023.svg
t0,2,3
7-simplex t123.svg
t1,2,3
7-simplex t014.svg
t0,1,4
7-simplex t024.svg
t0,2,4
7-simplex t124.svg
t1,2,4
7-simplex t034.svg
t0,3,4
7-simplex t134.svg
t1,3,4
7-simplex t234.svg
t2,3,4
7-simplex t015.svg
t0,1,5
7-simplex t025.svg
t0,2,5
7-simplex t125.svg
t1,2,5
7-simplex t035.svg
t0,3,5
7-simplex t135.svg
t1,3,5
7-simplex t045.svg
t0,4,5
7-simplex t016.svg
t0,1,6
7-simplex t026.svg
t0,2,6
7-simplex t036.svg
t0,3,6
7-simplex t0123.svg
t0,1,2,3
7-simplex t0124.svg
t0,1,2,4
7-simplex t0134.svg
t0,1,3,4
7-simplex t0234.svg
t0,2,3,4
7-simplex t1234.svg
t1,2,3,4
7-simplex t0125.svg
t0,1,2,5
7-simplex t0135.svg
t0,1,3,5
7-simplex t0235.svg
t0,2,3,5
7-simplex t1235.svg
t1,2,3,5
7-simplex t0145.svg
t0,1,4,5
7-simplex t0245.svg
t0,2,4,5
7-simplex t1245.svg
t1,2,4,5
7-simplex t0345.svg
t0,3,4,5
7-simplex t0126.svg
t0,1,2,6
7-simplex t0136.svg
t0,1,3,6
7-simplex t0236.svg
t0,2,3,6
7-simplex t0146.svg
t0,1,4,6
7-simplex t0246.svg
t0,2,4,6
7-simplex t0156.svg
t0,1,5,6
7-simplex t01234.svg
t0,1,2,3,4
7-simplex t01235.svg
t0,1,2,3,5
7-simplex t01245.svg
t0,1,2,4,5
7-simplex t01345.svg
t0,1,3,4,5
7-simplex t02345.svg
t0,2,3,4,5
7-simplex t12345.svg
t1,2,3,4,5
7-simplex t01236.svg
t0,1,2,3,6
7-simplex t01246.svg
t0,1,2,4,6
7-simplex t01346.svg
t0,1,3,4,6
7-simplex t02346.svg
t0,2,3,4,6
7-simplex t01256.svg
t0,1,2,5,6
7-simplex t01356.svg
t0,1,3,5,6
7-simplex t012345.svg
t0,1,2,3,4,5
7-simplex t012346.svg
t0,1,2,3,4,6
7-simplex t012356.svg
t0,1,2,3,5,6
7-simplex t012456.svg
t0,1,2,4,5,6
7-simplex t0123456.svg
t0,1,2,3,4,5,6

Zunanje povezave[uredi | uredi kodo]