1using System;
2using System.Text.RegularExpressions;
3 
4public static string[] Tokenize(string equation)
5{
6   Regex RE = new Regex(@"([\+\-\*\(\)\^\\])");
7   return (RE.Split(equation));
8}
9
10public void TestTokenize( )
11{
12   foreach(string token in Tokenize("(y - 3)(3111*x^21 + x + 320)"))
13      Console.WriteLine("String token = " + token.Trim( ));
14}