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Daniel Rodríguez Hernandez

MathParser-Java

Description

MathParser-java is a cross platform mathematical parser library written in Java. With a couple lines of code, the library can process complex arithmetic expressions efficiently, as it is powered by Dijkstra's Shuting-yard algorithm.

Version
1.0.0

  • Complex arithmetic expressions

Dependency

<dependency>
  <groupId>com.google.code.mathparser-java</groupId>
  <artifactId>mathparser-java</artifactId>
  <version>1.0.0</version>
</dependency>

Usage

Arithmetic expressions

Instanciate the object using MathParserFactory and invoke calculate method with the desired expression. An object Result will be returned

MathParser mathParser = MathParserFactory.create();
Result result = mathParser.calculate("-5*((-3*2)/(-3)+1)");
System.out.println(result.doubleValue());

Supported operators

+ //Addition
- //Substraction
* //Multiplication
/ //Division
^ //Pow
( //Left Parentheses
) //Right Parentheses

Examples of valid expressions

3-[4-(5-7)]-{9-[5-(-4)]}
-5*[(-3*2)/(-3)+1]
7*(-3)+[2+3(-5)]
-[-13+(24-68)]-(-48+95)

Next release features

  • Function support
    • sin, cos, tan, sqrt, etc..

Contact

Be aware this is a project I'm working in my free time.
You can send me any commentary or suggestion at this email: daniel.rguez.hdez(at)gmail.com

Project Admins:

Last Update: March / 09 / 2013