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N-op & Standard Operation Name Rosetta Stone

Relative to rank/miscellaneous

1 op - [Null]

2n-1 op - Dual*

2n-1 op - Omnitruncation*

2n-1+1 op - Expansion*

*Only works on linear coxeter diagrams

0% of the specifics

2 op - Rectification

3 op - Truncation

4 op - Birectification

5 op - Cantellation

6 op - Bitruncation

7 op - Cantitruncation

8 op - Trirectification

9 op - Runcination

10 op - Bicantellation

11 op - Runcitruncation

12 op - Tritruncation

13 op - Runcicantellation

14 op - Bicantitruncation

15 op - Runcicantitruncation

16 op - Tetrarectification

17 op - Sterication

18 op - Biruncination

19 op - Steritruncation

20 op - Tricantellation

21 op - Stericantellation

22 op - Biruncitruncation

23 op - Stericantitruncation

24 op - Tetratruncation

25 op - Steriruncination

26 op - Biruncicantellation

27 op - Steriruncitruncation

28 op - Tricantitruncation

29 op - Steriruncicantellation

30 op - Biruncicantitruncation

31 op - Steriruncicantitruncation

32 op - Pentarectification

That's all I have time to write by hand. After 16 op or so they're useless anyway. Refer to the polytope wiki page on wythoffian operations for more information. I might write a program to generate higher ones, while writing this page I finally figured out how it works fully, and it's fairly simple for a human to do.

Their system works based off of rank expansions. Expanding edges is truncation, expanding faces is cantellation, expanding cells is runcination, and so on. When the CD starts with a ringed node, simply speak the expansion prefixes largest to smallest based off of the other ringed nodes. For example, xoxox has the fifth and third nodes ringed, so it'd be steri-cant-ellated. xxox has the second and fourth nodes ringed, so it'd be runci-trun-cated.

What if the CD doesn't start with a ringed node? Well, look for the first ringed node, and its position is the prefix and where to start from. So even though you might think ooxx is runcicanti something, because of the fourth and third nodes, it's actually called "tritruncation", because it starts on the third node, and then only has the second node ringed.

I'm not the biggest fan of this system. Now that I understand it, I like it a bit better, but it's overcomplicated, gets long quickly, and requires a lot of memorization. It's definitely one of the better polytope naming schemes that's popular, though.

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