pub fn transform_mat_papt<N, I, Iptr>(
mat: CsMatBase<N, I, &[Iptr], &[I], &[N], Iptr>,
perm: Permutation<I, &[I]>,
) -> CsMatBase<N, I, Vec<Iptr>, Vec<I>, Vec<N>, Iptr>Expand description
Compute the square matrix resulting from the product P * A * P^T