public static double EvaluateUnaryToken(string token, double a)
{
switch (token)
{
case "!": return(MathPlus.Factorial(a));
case "sin": return(Math.Sin(a));
case "cos": return(Math.Cos(a));
case "tg": return(Math.Tan(a));
case "ctg": return(1.0 / Math.Tan(a));
case "abs": return(Math.Abs(a));
case "ln": return(Math.Log(a));
case "sqrt": return(Math.Sqrt(a));
case "exp": return(Math.Exp(a));
default: throw new Exception("Unknown function/operator name.");
}
}
public Curve PlotFunction(double a, double b)
{
double[] arguments = MathPlus.Interpolate(a, b, 300);
Vector2[] nodes = new Vector2[arguments.Length];
for (int i = 0; i < arguments.Length; i++)
{
double x = arguments[i];
double y = Evaluate(x);
Vector2 node = new Vector2(x, y);
nodes[i] = node;
}
return(new Curve(nodes));
}