pyicon_calc.py: Updated docstring.

pyicon/pyicon_calc.py

@@ -163,6 +163,9 @@ def calc_edge2edge_viacell_coeff(IcD):
   return edge2edge_viacell_coeff
 
 def calc_edge2cell_coeff_cc(IcD):
+  """ Derive coefficient to map from edges to cells.
+  """
+
   """
 From math/mo_scalar_product.f90 map_edges2cell_3d (interface to map_edges2cell_no_height_3d -> map_edges2cell_no_height_3d_onTriangles):
 and from math/mo_operator_ocean_coeff_3d.f90 init_operator_coeffs_cell: