def num_nanoclusters(ConcAluminum, coag):
    """Return the number of Aluminum nanoclusters."""
    return (ConcAluminum / (dens_alum_nanocluster(coag).magnitude
                            * np.pi * coag.Diameter**3))
def num_nanoclusters ( ConcAluminum , coag ) : return ( ConcAluminum / ( dens_alum_nanocluster ( coag ) . magnitude * np . pi * coag . Diameter ** 3 ) )
Return the number of Aluminum nanoclusters.