code: def sphere_radius(V, n):
      
      return (((scipy.special.gamma(n / 2.0 + 1.0) * V) ** (1.0 / n)) /
              np.sqrt(np.pi))
docs: Return the radius of a sphere in an arbitrary number of dimensions.
  
      Parameters
      ----------
      V: array-like
          Volume.
      n: array-like
          The number of dimensions of the space in which the sphere lives.
  
      Returns
      -------
      R: array-like
          Radius.