private IExpressionType doPredefinedFunc(Function f)
{
Computator comp = new Computator();
Simplification s = new Simplification();
switch (f.getName())
{
case "plot":
MathList mathList = (MathList)f.getOperands()[0];
Variable var = (Variable)f.getOperands()[1];
Interval interval = (Interval)f.getOperands()[2];
PlotModel plot = new PlotModel(mathList, var, interval);
plot.drawGraphics();
return(f);
case "integrate":
Integrate i = new Integrate((Variable)f.getOperands()[1]);
IExpressionType operand = f.getOperands()[0].doOperation(comp);
if (operand.getType() == Types.VarDefinition)
{
return(i.integrate((IMathExpression)operand.getOperands()[1]));
}
IExpressionType integrated = i.integrate((IMathExpression)operand);
return(integrated.doOperation(comp));
}
List <IExpressionType> list = new List <IExpressionType>();
foreach (var op in f.getOperands())
{
list.Add(op.doOperation(comp));
}
return(s.simplify(new Function(f.getType(), list, f.getName())));
}