Function sprs::binop::add_dense_mat_same_ordering

pub fn add_dense_mat_same_ordering<N, I, Mat, D>(
    lhs: &Mat, 
    rhs: &ArrayBase<D, Ix2>, 
    alpha: N, 
    beta: N
) -> Array<N, Ix2> where
    N: Num + Copy,
    I: SpIndex,
    Mat: SpMatView<N, I>,
    D: Data<Elem = N>, 

Compute alpha * lhs + beta * rhs with lhs a sparse matrix and rhs dense and alpha and beta scalars