C#

kontax wrote:

1)Have you ever used it? A little little explanation of how it works is possible?

kontax wrote:

2)What do you mean with "via code (hard) or just as a process (easy)."

info.lundin.Math.ExpressionParser exp = new info.lundin.Math.ExpressionParser();

Hashtable h = new Hashtable();
h.Add("x", "1");
h.Add("y", "1,5");
h.Add("z", "0,23");

double result = exp.Parse("x + y + z", h); 
MessageBox.Show(result.ToString()); 

info.lundin.Math.ExpressionParser exp = new info.lundin.Math.ExpressionParser();

Hashtable h = new Hashtable();

double result = exp.Parse(myTextBox.Text, h); 
MessageBox.Show(result.ToString());