| Fact: |
| τm | = | Fm(1, τ) | = | ¶(m,1) | + | Fm-1(0, 1) | + | Fm(0, 1)τ |
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| + | Fmτ | = | τm |
| m | = | 0, 1, 2, 3, ∙∙∙ |
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| 1 | + | 0 | = | τ 0 |
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| 0 | + | τ | = | τ1 |
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| 1 | + | τ | = | τ2 |
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| 1 | + | 2τ | = | τ3 |
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| 2 | + | 3τ | = | τ4 |
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| 3 | + | 5τ | = | τ5 | = | F4(01) | + | F5(0, 1)τ | = | F5(1, τ) |
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| approx |
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| Approx |
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| τm | − | Fm-1(01) | − |
| = | residue |
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| Metric | fn | : | { | 1+(τm | − | Fm+4/2 | ) | /Fm+1} | = | 1/cs |
