Apache Commons Math
· The Apache Commons Math project is a library of lightweight mathematics
and statistics components addressing common practical problems.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window commons-math-parent-4.0-beta1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
