MACROEXPAND expr					(library procedure)

	takes as its input a Logo expression that invokes a macro (that is,
	one that begins with the name of a macro) and outputs the the Logo
	expression into which the macro would translate the input expression.


		.macro localmake :name :value
		op `[local ,[word "" :name] apply "make [,[:name] ,[:value]]]
		end

		? show macroexpand [localmake "pi 3.14159]
		[local "pi apply "make [pi 3.14159]]