Function ndarray_linalg::vector::outer

pub fn outer<A, S1, S2>(
    a: &ArrayBase<S1, Ix1>, 
    b: &ArrayBase<S2, Ix1>
) -> Array<A, Ix2> where
    A: NdFloat + ImplOuter,
    S1: Data<Elem = A>,
    S2: Data<Elem = A>, 

Outer product