parameters: (coord_map)
return_statement: return ax, 1 / a, -b / a
docstring: Invert a coord map by de-scaling and un-shifting;
      this gives the backward mapping for the gradient.
docstring_summary: Invert a coord map by de-scaling and un-shifting;
      this gives the backward mapping for the gradient.
docstring_tokens: Invert a coord map by de - scaling and un - shifting ; this gives the backward mapping for the gradient .
function: def inverse(coord_map):
      """
      Invert a coord map by de-scaling and un-shifting;
      this gives the backward mapping for the gradient.
      """
      ax, a, b = coord_map
      return ax, 1 / a, -b / a
function_tokens: def inverse ( coord_map ) : ax , a , b = coord_map return ax , 1 / a , - b / a