Publisher's Description:

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bcParseX is a mathematical expression parser COM component that can be used with Visual Studio, C#, VB, VC++, Borland Delphi.

bcParseX Component features include:

Easy to use component API.
Comes with predefined functions.
You can create custom functions/variables and get a callback to your own functions that you define in your source code.
Optimization: Constant expression elimination for repeated tasks.
Strings are supported in the expression.
Analytic Operators: +, -, /, *, ^
Logical Operators: <, >, =, &, |, !, <>, <=, >=
Paranthesis: (, {, [
Functions in the form of: f(x), f(x,y), f(x,y,z)
List of predefined functions is available in the documentation.
Royalty free distribution at affordable price.
Source code is optional.