muParser - a fast math parser library

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muParser
class reference

Introduction

About the parser
News
Projects using this lib
Licence

Features

Features
Overview
Built in functions
Built in binary operators

Build instructions

Building on Win32
Building on BSD/Linux
Misc build instructions
Including the files
Where to ask for help

Math parser interface

Parser (de)initialization
Evaluating an expression
Setting the expression
Defining identifier charsets
Defining parser variables
Explicit variable definition
Implicit variable definition
Defining constants
Defining functions
Defining operators
Unary operators
Binary operators
Querying variables
Querying constants
Value recognition callbacks
Removing variables/constants
Error handling
Example code

Current version

Release notes
Benchmarks

About the parser

Many applications require the parsing of mathematical expressions. The main objective of this library is to provide a fast and easy way of doing this. muParser is an extensible high performance math parser library written in C++. It works by transforming a mathematical expression into bytecode and precalculating constant parts of the expression.

muParser C# wrapper
a math parser for .NET
muParserX
a math expression parser with support for multitype data types

The library is written in pure C++ and should compile on every standard compliant compiler. The parser archive comes with projects for a variety of platforms. The code runs on 32 bit and 64 bit architechture and has been tested using MS VC++ V8.0 and GCC V4.2.4. It reportedly works on BCB too. Code samples are provided in order to help you understand its usage. The library is open source and distributed under the MIT license.

Before I go on, I'd like to thank SourceForge for hosting this project. This pages would not exist without the webspace provided by them and of course I'd like to thank CodeProject for hosting the original math parser article.

Support this project

muParser is free software and anyone can use it free of charge for commercial and noncommercial purposes. If you wish you can support this project by making a small donation:

A project like muParser requires permanent maintanence in order to adopt to new platforms, new compiler version and for fixing bugs. So if you are using the library and find it useful i would like to encourage you to make a donation in order to help keeping the project up to date. But let's be honest here: I have a fulltime job and I can't even assure you that a donation will give you any benefit in terms of support. It's in fact very likely you will get the same kind of support whether you made a donation or not. (And the support is pretty good anyway) However i can officially guarantee that you make my day by donating even a small amount of money. In a way is's a "Wow the people actually really appreciate what i'm doing" kind of thing and that's whats driving me and ultimately this is what is keeping this project alive.

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