# 七角錐

8
14

1個七邊形（底面）

(37)

C7, [7]+, (77)

 七角錐（自身對偶）(對偶多面體)

## 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

C1v, [1]

C2v, [2]

C3v, [3]

C4v, [4]

C5v, [5]

C6v, [6]

C7v, [7]

C8v, [8]

C9v, [9]

C10v, [10]
...

C∞v, [∞]

Ciπ/λv, [iπ/λ]

## 參考文獻

1. ^ David I. McCooey. Simplest Canonical Polyhedron with C7v Symmetry: Heptagonal Pyramid. [2014-06-23].
2. ^ Gerdes, Paulus. "Geometry from Africa: Mathematical and educational explorations." Washington, DC, MAA (1999).
3. ^ Weisstein, Eric W. (编). Heptagonal Pyramid. at MathWorld--A Wolfram Web Resource. Wolfram Research, Inc. （英语）.
4. ^ Deza, Elena; Deza, M., Figurate Numbers, World Scientific: 92, 2012 [2014-06-23], ISBN 9789814355483, （原始内容存档于2014-06-24）.
5. ^ Beiler, Albert H., Recreations in the Theory of Numbers: The Queen of Mathematics Entertains, Courier Dover Publications: 194, 1966 [2014-06-23], ISBN 9780486210964, （原始内容存档于2014-06-24）.
6. ^ Wolfram, Stephen. "heptagonal pyramid". from Wolfram Alpha: Computational Knowledge Engine, Wolfram Research. [2014-06-23] （英语）.
7. ^ Marcel Gielen, Rudolph Willem, Bernd Wrackmeyer, Fluxional Organometallic and Coordination Compounds,Physical Organometallic Chemistry, John Wiley & Sons, 2005, ISBN 9780470858448, p20
8. ^ Pan, Li-Li, Jun Li, and Lai-Sheng Wang. "Low-lying isomers of the B9 boron cluster: The planar molecular wheel versus three-dimensional structures." The Journal of chemical physics 129.2 (2008): 024302.
9. ^ Florian P. Pruchnik, Organometallic Chemistry of the Transition Elements, Modern Inorganic Chemistry, Springer, 1990 ,ISBN 9780306431920, PT127