/// <summary>
/// Parses input string into values and operators to be evaluated
/// </summary>
/// <param name="input">A string consisting of double values seperated by operators. Whitespace is acceptable.</param>
public void ParseString(string input)
{
List<string> values;
string splitPatern = @"([\+\-\*\/\^])|(\w+)";
values = new List<string>(Regex.Split(input, splitPatern));
values.RemoveAll(str => String.IsNullOrWhiteSpace(str));
foreach (var value in values)
{
Parse(value);
}
}