public override double Execute()
{
switch (index)
{
case 1:
return(Math.Cos(right.Execute()));
case 2:
return(Math.Sin(right.Execute()));
case 3:
return(Math.Asin(right.Execute()));
case 4:
return(Math.Acos(right.Execute()));
case 5:
return(Math.Sqrt(right.Execute()));
case 6:
return(left.Execute() + right.Execute());
case 7:
return(left.Execute() - right.Execute());
case 8:
return(left.Execute() * right.Execute());
case 9:
return(left.Execute() / right.Execute());
case 10:
return(Math.Pow(left.Execute(), right.Execute()));
case 11:
return(-1 * right.Execute());
case 12:
return(Math.Abs(right.Execute()));
case 13:
return(x);
case 14:
return(Math.E);
case 15:
return(Math.PI);
default:
throw new Exception("Not Assigned Formula was executed");
}
}
//in constructor we get the text of neccessary formula
//parse it and form the binary tree of calculating order
//and we do it just once, that let to mitigate the count of computing for each X when Charting
public double Execute(double argument)
{
Operation.x = argument;
return(root.Execute());
}