code: def plot_eq_sym(fignum, DIblock, s, sym):
      
  # make the stereonet
      plt.figure(num=fignum)
      if len(DIblock) < 1:
          return
      # plt.clf()
      if not isServer:
          plt.figtext(.02, .01, version_num)
      plot_net(fignum)
  #
  #   put on the directions
  #
      plot_di_sym(fignum, DIblock, sym)  # plot directions with symbols in sym
      plt.axis("equal")
      plt.text(-1.1, 1.15, s)
docs: plots directions with specified symbol
      Parameters
      __________
      fignum : matplotlib figure number
      DIblock : nested list of dec/inc pairs
      s : specimen name
      sym : matplotlib symbol (e.g., 'bo' for blue circle)