Table 1.
Description of different Betti numbers and their associated values for a sphere and torus
| Description | Sphere | Torus | |
|---|---|---|---|
| 0 | Connected components | 1 | 1 |
| 1 | (Non-contractible) loops | 0 | 2 |
| 2 | Voids | 1 | 1 |
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