Function ndarray::linalg::general_mat_vec_mul

pub fn general_mat_vec_mul<A, S1, S2, S3>(alpha: A,
                                          a: &ArrayBase<S1, Ix2>,
                                          x: &ArrayBase<S2, Ix1>,
                                          beta: A,
                                          y: &mut ArrayBase<S3, Ix1>) where S1: Data<Elem=A>,
        S2: Data<Elem=A>,
        S3: DataMut<Elem=A>,
        A: LinalgScalar

General matrix-vector multiplication.

Compute y ← α A x + β y

where A is a M × N matrix and x is an N-element column vector and y an M-element column vector (one dimensional arrays).

Panics if array shapes are not compatible
Note: If enabled, uses blas gemv for elements of f32, f64 when memory layout allows.