public void testMathExpressions()
{
final ParserServiceAsync parserService = ParserService.Util.getInstance();
delayTestFinish(500);
parserService.parseEquation("y'=sin(x)+cos(x)+exp(x)+log(x)+tan(x)+sqrt(x), y = 0",
new AsyncCallback<Equation>()
{
@Override
public void onFailure(Throwable caught)