. 2017 Feb 28;16:31. doi: 10.1186/s12938-017-0322-2
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| δ(0,−) = 1 | δ(1,0) = 2 | δ(2,·) = 3 | δ(3,1–9) = 4 |
| δ(4,0–9) = 4 | δ(4,ε) = 0 | δ(1,1) = 5 | δ (5, ε) = 0 |