 				return html + "#{@numerator}" + closingHTML
 			return html + "(#{@numerator}/#{@denominator})" + closingHTML
 
-		toString: ->
-			unless @denominator == 1
-				return "#{@numerator}/#{@denominator}"
-			return "#{@numerator}"
-
 		toDrawingNode: ->
 			NumberNode = require("prettyRender").Number
 			FractionNode = require("prettyRender").Fraction

		expandAndSimplify: ->
			@copy()

		toString: ->
			"Ïƒ(#{@label})"

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


		copy: ->
			return new Terminal(@label)

	class Constant extends Terminal
		# Constants in the equation tree, e.g. 1/2
