# 七角柱

{7}×{}

2 7 | 2

9
21

7個正方形
7{4}+2{7}

D7, [7,2]+, (722), order 14

zonohedron半正

 4.4.7（頂點圖） 雙七角錐（對偶多面體） （展開圖）

## 相關多面體與鑲嵌

[7,2], (*722) [7,2]+, (722)

{7,2} t{7,2} r{7,2} 2t{7,2}=t{2,7} 2r{7,2}={2,7} rr{7,2} tr{7,2} sr{7,2}

V72 V142 V72 V4.4.7 V27 V4.4.7 V4.4.14 V3.3.3.7

3 4 5 6 7 8 9 10 11 12
[2n,2]
[n,2]
[2n,2+]

t{2,1}

t{2,2}

t{3,2}

{4,2}

t{5,2}

t{6,2}

t{7,2}

t{8,2}

...

t{2,∞}

t{2,iπ/λ}

## 參考文獻

1. ^ Heptagonal Prism页面存档备份，存于互联网档案馆） dmccooey.com [2014-6-22]
2. ^ Heptagonal prisms and antiprisms页面存档备份，存于互联网档案馆） umanitoba.ca [2014-6-22]
3. ^ Anthony Pugh. Polyhedra: A Visual Approach. University of California Press. 1976: 27 [2020-09-27]. ISBN 9780520030565. （原始内容存档于2019-05-10） （英语）.
4. ^ Weisstein, Eric W. (编). Hexagonal prism. at MathWorld--A Wolfram Web Resource. Wolfram Research, Inc. （英语）.
5. ^ Guest, Simon D., and Sergo Pellegrino. "The folding of triangulated cylinders, Part I: Geometric considerations." Journal of applied mechanics 61.4 (1994): 773-777.
6. ^ Ishikawa, Shigeta. "Optical multiplexer/demultiplexer using interference filters." U.S. Patent No. 4,482,994. 13 Nov. 1984.
7. ^ Somer, Mehmet, et al. "Mg2[BN2]Cl and Mg8[BN2]5I: Novel Magnesium Nitridoborate Halides—Syntheses, Crystal Structures, and Vibrational Spectra." Zeitschrift für anorganische und allgemeine Chemie 630.7 (2004): 1015-1021.
8. ^ Van Fleet, D. S. "A comparison of histochemical and anatomical characteristics of the hypodermis with the endodermis in vascular plants." American Journal of Botany (1950): 721-725.
9. ^ Heptagonal Prism 3x3x3页面存档备份，存于互联网档案馆） twistypuzzles.com [2014-6-22]
10. ^ Rubik's polyhedrons页面存档备份，存于互联网档案馆） twistypuzzles.com [2014-06-22]
11. ^ Rubik's Truncated Heptagonal prism页面存档备份，存于互联网档案馆） twistypuzzles.com 截角正七角柱 [2014-06-22]