FA-14750 / Numerics / Member archive
Bernstein to power basis: complement expansion degree · case 05
The exact bernstein to power basis result violates the stated contract at complement expansion degree.
Case contract
Input Bernstein coefficients b0..bn as integers; return exact ascending power coefficients of sum bi*choose(n,i)*t^i*(1-t)^(n-i).
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 | [-1, 0] | [-1, 2] | Failed |
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