| Regina 7.0 Calculation Engine
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| Files | |
| file | examplelink.h | 
| Offers several ready-made examples of knots and links. | |
| file | link.h | 
| Deals with knots and links in the 3-sphere. | |
| file | modellinkgraph.h | 
| Deals with model 4-valent planar graphs for knots and links. | |
| file | tangle.h | 
| Deals with 2-tangles in the 3-ball. | |