 
 		copy: ->
 			return new Terminal(@label)
-
-		toString: ->
-			@label
 
 	class Constant extends Terminal
 		# Constants in the equation tree, e.g. 1/2

		expandAndSimplify: ->
			@copy()

		toString: ->
			"Ïƒ(#{@label})"

		toMathML: ->
			dummyVar = new Variable("Ïƒ(#{label})")
			return dummyVar.toMathML(arguments)

				return html + "#{@numerator}" + closingHTML
			return html + "(#{@numerator}/#{@denominator})" + closingHTML

		toDrawingNode: ->
			NumberNode = require("prettyRender").Number
			FractionNode = require("prettyRender").Fraction
