### 17.8 Interaction with `gnuplot`

— Loadable Function: val = gnuplot_binary ()
— Loadable Function: old_val = gnuplot_binary (new_val)

> Query or set the name of the program invoked by the plot command. The default value `"gnuplot"`. See Installation.

— Loadable Function: val = gnuplot_command_plot ()
— Loadable Function: old_val = gnuplot_command_plot (new_val)

— Loadable Function: val = gnuplot_command_replot ()
— Loadable Function: old_val = gnuplot_command_replot (new_val)

— Loadable Function: val = gnuplot_command_splot ()
— Loadable Function: old_val = gnuplot_command_splot (new_val)

— Loadable Function: val = gnuplot_command_using ()
— Loadable Function: old_val = gnuplot_command_using (new_val)

— Loadable Function: val = gnuplot_command_with ()
— Loadable Function: old_val = gnuplot_command_with (new_val)

— Loadable Function: val = gnuplot_command_axes ()
— Loadable Function: old_val = gnuplot_command_axes (new_val)

— Loadable Function: val = gnuplot_command_title ()
— Loadable Function: old_val = gnuplot_command_title (new_val)

— Loadable Function: val = gnuplot_command_end ()
— Loadable Function: old_val = gnuplot_command_end (new_val)