Free math expression parser component software for windows

Its a fast equation parser/evaluator with parse-tree builder and user-friendly interface for parsing and calculation a run-time defined math expression.
The math expressions is represented as string in a function style
F(x1, x2,..., xn) =f(x1, x2,..., xn)
, where
F(x1, x2,..., xn) - declares number and names of the variables;
f(x1, x2,..., xn) - math expression may contain:
-variables x1, x2,..., xn and numbers,
-arithmetic operations + - * / ^,
-supporting a large set of math functions: sqrt, sin, exp, cos, tan, ln, abs, acos, asin, atan, cosh, log10, sinh, tanh,
-constants e= 2.71828182845904 and pi= 3.14159265358979, and
-user defined functions and constants.
For example:
F(x, y) = 3*x^2+y^2+e/4,
F(x1, x2, y) = (x1-sin(x2))/y,
F()=5+6+pi.
Algorithm, which is used here, has been developed and implemented by Easy Math Solution and has different binary (static link library, dynamic link library and COM) implementation and programming approach (procedural and object oriented). It allows using EquTranslator in C/C++, C#, Delphi, VB and other languages and systems that can understand dll and COM.

The Regular Expression Component Library is an easy to use library for searching and/or replacing strings or data in files using regular expressions.
It supports both MFC programming using the MFC programming model and non-MFC programming. Both methods of programming support a properties, methods, and events model with VC++. Member function event handling is supported using the packaged Boost function and bind facilities which comes with the download.
It has flexible expression options to match any type of regular expression syntax. There is extensive documentation to explain its use and the library is fully supported. The library is also fast and easy to use and the header files automatically link in the correct supporting libraries.
Regular expressions are a means of doing searching based on patterns adopted from the UNIX idea of regular expressions in various Unix tools.
The properties/methods/events model uses:
a) Properties for specifying a regular expression, string to match, file specification ( with wildcards ) to match, flexible options for regular expression syntax, flexible options for matching considerations, and other properties to enhance matching capabilities.
b) Methods to match a string in numerous ways; the entire string, the beginning of the string, anywhere in the string, multiple exclusive matches in a string. Methods to match file data; either a single match in a file or multiple matches in a file. A method to change data in a string or file based on format-like replacement syntax which can use the actual data found or one of its sub-expressions. A method for splitting strings based on regular expressions.
c) Events to handle the gathering of specific data for each of the matching methods. Most of the event handlers gain access to what the expression matches as well as to what each sub-expression of the expression matches.

The Regular Expression Component Library is an easy to use library for searching and/or replacing strings or data in files using regular expressions.
It supports both VCL programming using the C++ Builder 6 IDEs RAD programming model and non-VCL programming. Both methods of programming support the properties, methods, and events model C++ Builder.
It has flexible expression options to match any type of regular expression syntax. There is extensive documentation to explain its use and the library is fully supported. The library is also fast and easy to use and the header files automatically link in the correct supporting libraries.
Regular expressions are a means of doing searching based on patterns adopted from the UNIX idea of regular expressions in various Unix tools.
The properties/methods/events model uses:
a) Properties for specifying a regular expression, string to match, file specification ( with wildcards ) to match, flexible options for regular expression syntax, flexible options for matching considerations, and other properties to enhance matching capabilities.
b) Methods to match a string in numerous ways; the entire string, the beginning of the string, anywhere in the string, multiple exclusive matches in a string. Methods to match file data; either a single match in a file or multiple matches in a file. A method to change data in a string or file based on format-like replacement syntax which can use the actual data found or one of its sub-expressions. A method for splitting strings based on regular expressions.
c) Events to handle the gathering of specific data for each of the matching methods. Most of the event handlers gain access to what the expression matches as well as to what each sub-expression of the expression matches.

SMConvexButton component is an extension of the TBitBtn component that allows to display a caption and glyph. It looks like an IBM-button.