TbcParser is a mathematical expression parser VCL component that can be used with Borland Delphi 4567 and Borland C++ Builder 3456. Source code works with Kylix to compile and run in Linux as well.TbcParser Component features include:Easy to use component API. Comes with predefined functions. You can create custom functionsvariables and get a callback to your own functions that you define in your source code. Optimization: Constant expression elimination for repeated tasks. Analytic Operators: + - * ^ Logical Operators: & ! Paranthesis: ( Functions in the form of: f(xyz...) List of predefined functions is available in the documentation. Royalty free distribution at affordable price. Source code is included.