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Polynomial taylor shift: source degree iteration · case 04
The exact polynomial taylor shift result violates the stated contract at source degree iteration.
Case contract
Input [A,h] ascending integer polynomial, integer h; return coefficients of A(t+h), preserving array length.
Why this case matters
Exact discrete arithmetic with observable algorithmic state; no floating point approximation is used.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit oracle 0 | [-3, -3, -1, 0] | [-4, -6, -4, -1] | Failed |
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