FA-14685 / Numerics / Member archive
Lagrange interpolation value: evaluation numerator · case 05
The exact lagrange interpolation value result violates the stated contract at evaluation numerator.
Case contract
Input [points,t] distinct integer abscissae and integer ordinates; exact rational interpolation value [p,q].
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, 2] | [1, 1] | Failed |
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