The Hipparchus project is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language.

More information can be found on the homepage. The JavaDoc can be browsed. Questions related to the usage of Hipparchus should be posted to the users mailing list.

You can download source and binaries from our FIXME! download page.

Alternatively you can pull it from the central Maven repositories:

<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-core</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-clustering</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-fft</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-fitting</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-genetics</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-geometry</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-ode</artifactId>
  <version>1.0</version>
</dependency>
<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-optim</artifactId>
  <version>1.0</version>
</dependency>

If your project previously depended on Apache Commons Math and you want to switch to Hipparchus, you can also add the temporary migration jar

<dependency>
  <groupId>org.hipparchus</groupId>
  <artifactId>hipparchus-migration</artifactId>
  <version>1.0</version>
</dependency>

We accept PRs via github. The developers mailing list is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:

• No tabs! Please use spaces for indentation.
• Respect the code style.
• Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change.
• Provide JUnit tests for your changes and make sure your changes don't break any existing tests by running mvn clean test.

If you plan to contribute on a regular basis, please consider filing a Contributor License Agreement. You can learn more about contributing via GitHub in our contribution guidelines.

Code is under the Apache Licence v2.

• Project home page
• Contributor License Agreement
• Mailing lists