# Octagrammic diorthoprism

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Octagrammic diorthoprism | |
---|---|

Rank | 4 |

Type | Uniform |

Notation | |

Bowers style acronym | Stodop |

Elements | |

Cells | 8+8 cube, 8 stop |

Faces | 16+32+32 squares, 8 octagrams |

Edges | 32+32+64 |

Vertices | 64 |

Vertex figure | Digonal disphenoid, edge lengths √2-√2 (base 1) and √2 (base 2 and sides) |

Measures (edge length 1) | |

Circumradius | |

Hypervolume | |

Dichoral angles | Stop–8/3–stop: 90° |

Cube–4–stop: 90° | |

Cube–4–cube: 45° | |

Related polytopes | |

Army | Tat |

Regiment | Stodop |

Conjugate | Octagonal diorthoprism |

Convex core | Octagonal duoprism |

Properties | |

Symmetry | B_{2}≀S_{2}, order 128 |

Nature | Tame |

The **octagrammic diorthoprism** or **stodop**, also called **square-octagram plus-prism** or **sistople**, is a uniform compound polychoron. It is a compound of two square-octagrammic duoprisms.

It can be edge-inscribed into gittith.

## Vertex coordinates[edit | edit source]

The vertices are the same as those of gittith.

## External links[edit | edit source]

- Klitzing, Richard. "sistople".