status.i4.v = wn_symbol(x.r4.r, y.r4.r)

	status.i4.v = wn_symbol_c(x.r4.v, y.r4.v)

	This routine plots a symbol at specified real coordinates in a
	graphics window specified by a previous call to wn_active(_c).
	The symbol to be plotted is determined by the most recent call to
	wn_set_plot_symbol(_c) or wn_setsym(_c).  The available symbols
	are: circle, square, triangle, cross, diamond, and any Lex Object.
	All of the simple symbol types are available in either filled or
	outline form depending on the current graphics fill mode.

	x, y		location of the symbol in real-world coordinates

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOSETUP		an active window has not been established

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_symbol_set, wn_set_plot_symbol(_c), wn_setsym(_c), wn_color(_c),
	wn_user_defined_color_c, wn_read_user_defined_color, wn_fill_mode(_c),
	wn_flush, intro_graphics_windows

	C/C++ usage:

	int	status;
	int	type = WN_CIRCLE;
	int	size = 3;
	float	x = 1.0;
	float	y = 1.0;

	status = wn_set_plot_symbol_c(type,size);

	status = wn_symbol_c(x,y);