FA-99140 / Learning rate schedules / Member archive
Cosine decay ends at half the configured floor · case 05
Cosine decay ends at half the configured floor.
Case contract
Return floor+(base-floor)*(1+cos(pi*progress))/2 for clamped progress.
Why this case matters
A deterministic scalar schedule makes step-to-rate mapping explicit for a small training loop.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| start | 9.0 | 10 | Failed |
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