Function compute_adjusted_weights 

pub fn compute_adjusted_weights<EF: Field>(
    point: EF,
    diff_invs: &[EF],
) -> Vec<EF>

Subtract z^{-1} from each inverse denominator to produce adjusted barycentric weights.

Overview

Converts raw 1/(z - x_i) values into the form needed by the zero-allocation interpolation path.

Intended to be called once per opening point z, then reused across every matrix opened at that point.

Performance

One extension-field inversion + N parallel extension-field subtractions.