Function rgsl::linear_algebra::hessenberg_unpack

pub fn hessenberg_unpack(
    h: &mut MatrixF64,
    tau: &mut VectorF64,
    u: &mut MatrixF64
) -> Value

This function constructs the orthogonal matrix U from the information stored in the Hessenberg matrix H along with the vector tau. H and tau are outputs from gsl_linalg_hessenberg_decomp.