code: def point_reflect(pt, nv):
      
  
      # Imports
      import numpy as np
      from scipy import linalg as spla
  
      # Ensure pt is reducible to 3-D vector
      pt = make_nd_vec(pt, nd=3, t=np.float64, norm=False)
  
      # Transform the point and return
      refl_pt = np.dot(mtx_refl(nv, reps=1), pt)
      return refl_pt
docs: Reflect a 3-D point through a plane intersecting the origin.
  
      nv defines the normal vector to the plane (needs not be normalized)
  
      .. todo:: Complete point_reflect docstring
  
      Raises
      ------
      ValueError : If pt or nv are not reducible to 3-D vectors
      ValueError : If norm of nv is too small