code: def draw_mathtext(self, gc, x, y, s, prop, angle):
          
          if __debug__: verbose.report('RendererAgg.draw_mathtext',
                                       'debug-annoying')
          ox, oy, width, height, descent, font_image, used_characters = \
              self.mathtext_parser.parse(s, self.dpi, prop)
  
          xd = descent * np.sin(np.deg2rad(angle))
          yd = descent * np.cos(np.deg2rad(angle))
          x = np.round(x + ox + xd)
          y = np.round(y - oy + yd)
          self._renderer.draw_text_image(font_image, x, y + 1, angle, gc)
docs: Draw the math text using matplotlib.mathtext