special characters count as LaTeX commands

src/commands.js

@@ -153,7 +153,7 @@ _.redraw = function() {
   });
 };
 
-LatexCmds.sqrt = SquareRoot;
+LatexCmds.sqrt = LatexCmds['√'] = SquareRoot;
 
 function NthRoot(replacedFragment) {
   SquareRoot.call(this, replacedFragment);

src/symbols.js

@@ -116,7 +116,7 @@ LatexCmds.vartheta = //AMS and LaTeX
   bind(Variable,'\\vartheta ','ϑ');
 
 //Greek constants, look best in un-italicised Times New Roman
-LatexCmds.pi = bind(NonSymbolaSymbol,'\\pi ','π');
+LatexCmds.pi = LatexCmds['π'] = bind(NonSymbolaSymbol,'\\pi ','π');
 LatexCmds.lambda = bind(NonSymbolaSymbol,'\\lambda ','λ');
 
 //uppercase greek letters
@@ -273,7 +273,7 @@ BigSymbol.prototype = new Symbol; //so instanceof will work
 LatexCmds.sum = LatexCmds.summation = bind(BigSymbol,'\\sum ','∑');
 LatexCmds.prod = LatexCmds.product = bind(BigSymbol,'\\prod ','∏');
 LatexCmds.coprod = LatexCmds.coproduct = bind(BigSymbol,'\\coprod ','∐');
-LatexCmds.int = LatexCmds.integral = bind(BigSymbol,'\\int ','∫');
+LatexCmds.int = LatexCmds.integral = LatexCmds['∫'] = bind(BigSymbol,'\\int ','∫');